Plaintiffs DISH Network Corporation and DISH Network LLC (collectively, Dish) filed a diversity action in the District of Colorado, seeking a judgment declaring that Dish’s insurers had a duty under Colorado law to defend Dish in a patent infringement suit. 1 The district court held that the underlying complaint did not allege an “advertising injury” under the policies issued to Dish by the five defendant insurers, Arrowood Indemnity Company (Arrowood), Travelers Indemnity Company (Travelers), XL Insurance America (XL), Arch Specialty Insurance Company (Arch), and National Union Fire Insurance Company (National Union), or their predecessors (collectively, Insurers). The court granted Insurers’ motion for summary judgment, and Dish appeals. Exercising jurisdiction under 28 U.S.C. § 1291, we reverse and remand.
I.
A. The Underlying Complaint and Patents-in-Suit
Dish 2 sells satellite television programming. ApltApp. at 2156. The present insurance coverage dispute arises from a patent infringement suit brought against Dish by Ronald A. Katz Technology Licensing, L.P. (RAKTL). Ronald A. Katz Tech. Licensing, LP v. EchoStar Commc’ns Corp. and EchoStar Satellite LCC, Case No. C-07-03151 WDB (N.D.Cal.).
In its amended complaint, RAKTL alleged that Dish had infringed one or more claims in each of twenty-three patents. Aplt-App. at 167 ¶ 45. RAKTL asserted *1013 that Dish did so by “making, using, offering to sell, and/or selling ... automated telephone systems, including without limitation the DISH Network customer service telephone system, that allow [Dish’s] customers to perform pay-per-view ordering and customer service functions over the telephone.” Id. Although the record reveals little more about how Dish actually used the technologies at issue, the complaint does provide some general background regarding RAKTL’s patents:
Among [the inventor’s] most prominent and well-known innovations are those in the field of interactive call processing. [His] inventions in that field are directed to the integration of telephonic systems with computer databases and live operator call centers to provide interactive call processing services.
Id. at 162 ¶ 10. RAKTL alleged that its patents have “multiple fields of use, including but not limited to financial services call processing, automated securities transactions, automated credit card authorization services, automated wireless telecommunication services and support, automated health care services, and product and service support.” Id. at 163 ¶ 17.
Each of the patents-in-suit contains detailed claims outlining numerous possible applications for the technology. Id. at 2177-2744. Insurers concede that at least six of the claims Dish may have infringed explicitly mention advertising or product promotion. See Insurers’ Response Brief (Ins. Resp. Br.) at 60 (citing Aplt.App. at 2269, 2271, 2681 (claims describing “[a] process ... wherein [the] operating format is an automated promotional format;” “an automated promotional format for promoting ... products;” and “[a] telephone interface system ... wherein said select interactive operating format involves advertising of a product for sale”)).
B. The Relevant Insurance Policies
Between 2001 and 2004, Dish purchased the primary and excess commercial general liability policies at issue here from the five defendant Insurers. Ins. Resp. Br. at 5-7. Primary insurance is provided by Arrowood and Travelers, while XL, Arch, and National Union are responsible for excess coverage if the primary policies are exhausted. Id.
All of the policies promise to defend and indemnify Dish against claims alleging “advertising injury,” among other things. Most of the policies define “advertising injury” in terms of four categories of offenses:
“Advertising Injury” means injury arising out of one or more of the following offenses:
1. Oral or written publication of material that slanders or libels a person or organization or disparages a person’s or organization’s goods, products or services;
2. Oral or written publication of material that violates a person’s right to privacy;
3. Misappropriation of advertising ideas or style of doing business; or
4. Infringement of copyright, title or slogan.
Aplt.App. at 208, 431, 479, 536, 964. The National Union policy, by contrast, limits coverage to “injury arising solely out of your advertising activities as a result of’ one or more of the four types of offenses. Id. at 208 (emphasis added). The Arch policy is the only one to provide a different definition of “advertising injury,” referring, in relevant part, to “[t]he use of another’s advertising idea in your ‘advertisement.’” Id. at 1013. Arch’s policy also contains a clause excluding from coverage “any claim ... [a]rising out of the *1014 infringement of copyright, patent, trademark, trade secret or other intellectual property rights.” Id. at 1004. This exclusion, however, “does not apply to infringement, in [the insured’s] ‘advertisement,’ of copyright, trade dress or slogan.” Id.
C. The Present Action
On receiving RAKTL’s complaint, Dish requested a defense from Insurers, who denied coverage.
Dish Network Corp. v. Arch Specialty Ins. Co.,
Applying Colorado law, the district court concluded that a claim for patent infringement, such as the one at issue here, could “properly give rise to coverage, or even the specter of coverage, such that an insurer will have a duty to defend.” Id. at 1186. The duty would arise, the court stated, where the insured established three elements: first, that it was engaged in “advertising” during the relevant period; second, that the underlying complaint alleged a predicate offense under the policy language; and third, that a causal connection existed between the advertising and the alleged injury suffered by the patent holder. Id. at 1180.
“For purposes of th[e] summary judgment motion,” the court ruled that RAKTL’s reference to “customer service functions” in its complaint was sufficient to allege that Dish engaged in “advertising.” Id. at 1182. The court rejected, however, Dish’s argument that its use of a patented interactive telephone system to advertise could constitute “misappropriation of advertising ideas or style of doing business,” the sole predicate offense on which Dish relied. Id. at 1184-85. The court explained that “[t]he [RAKTL] complaint focuses on [Dish]’s use of these patented technologies as a means of conveying content to and tailoring its interactions with its customers.” Id. at 1184.
[The complaint] does not allege that the patented technologies are themselves incorporated as an element of [Dish]’s communications and interactions with its customers. The complained of conduct does not, therefore, constitute “misappropriation of an advertising idea” within the meaning of the contested insurance policies.
Id.
Accordingly, the court granted summary judgment for Insurers without addressing the third element of its test — causation— or the additional arguments certain insurers had raised under their individual policies. Id. at 1185 & n. 20. The court also did not reach the duty to indemnify or Dish’s other claims. Id. at 1186. Because we conclude that the complaint potentially alleges advertising injury arising from the misappropriation of advertising ideas, we reverse and remand for further proceedings consistent with this opinion.
II.
In this appeal, we are asked to apply Colorado law in deciding several issues without clear guidance from the courts of that state. 3 First, Insurers dispute whether a claim for patent infringement can ever constitute “advertising injury” within the relevant policy language. We conclude *1015 that it can. Accordingly, we reach the second issue: whether the specific allegations in this case bring the underlying suit within the policy language. This question requires us to decide, first, whether the underlying complaint can be read to allege “misappropriation of advertising ideas or style of doing business,” and second, whether advertising activities are alleged which caused the injury of which the underlying plaintiff complains. 4 We agree with Dish that both “misappropriation of advertising ideas” and the requisite causal connection potentially are alleged.
A. Standard of Review
The district court granted Insurers’ motions for summary judgment pursuant to Fed.R.Civ.P. 56(c). We review de novo this decision, using the same summary judgment standard the district court applied.
Applied, Genetics Int’l, Inc. v. First Affiliated Sec., Inc.,
B. The Duty to Defend Under Colorado Law
In determining whether there is a duty to defend, Colorado courts adhere to a “four corners rule” or “complaint rule,” under which the courts compare the allegations of the underlying complaint with the terms of the applicable policy. “In the duty to defend context, the ‘complaint rule’ operates to cast a broad net, such that when the underlying complaint alleges any facts or claims that might fall within the ambit of the policy, the insurer must tender a defense.”
Cyprus Amax Minerals Co. v. Lexington Ins. Co.,
The patents-in-suit, which combined occupy hundreds of pages, were referenced but not reproduced in RAKTL’s amended complaint.
See
Aplt.App. at 163-67 (complaint);
id.
at 2177-2744 (patents-in-suit). Both the parties and the district court, however, discussed the substance of at least some of the claims that RAKTL potentially alleges were violated.
Dish,
We need not decide the issue, however, because Insurers concede that the RAKTL technology has potential advertising uses. See Ins. Resp. Br. at 39 (“While the patented technology could theoretically be used for advertising purposes, this changes nothing.”). The real substance of the parties’ dispute focuses not on specific patent claims, but on whether, under Colorado law, RAKTL’s allegation that Dish infringed its patents by “allowing its] customers to perform pay-per-view ordering and customer service functions” can be read to allege “advertising injury.”
C. Interpretation of Insurance Policies
In construing the terms of an insurance policy, Colorado law mandates that the court apply ordinary principles of contract interpretation.
Cyprus,
D. Patent Infringement as “Advertising Injury”
The threshold issue in this case is whether patent infringement can ever fall within the applicable commercial general liability policies’ “advertising injury” coverage. The parties have focused their arguments exclusively on the offense within the definition of “advertising injury” consisting of “misappropriation of advertising ideas or style of doing business.” Dish
*1017
Op. Br. at 30; Ins. Resp. Br. at 36. The district court concluded that, under certain circumstances, Colorado courts would hold that patent infringement may indeed fall within the policy language.
Dish,
The Colorado courts have not addressed this issue, and the parties disagree as to what the weight of authority from other jurisdictions teaches. Dish states that “a clear majority view has emerged.... [CJourts routinely distinguish between claims based on the manufacture and sale of an infringing product — in which case the claim is not covered even if the product is used in advertising — and a claim based on the unauthorized use of a patented advertising idea or method — in which case the claim is covered.” Dish Op. Br. at 20. Insurers, on the other hand, contend that “courts hold that the phrase ‘misappropriation of advertising ideas or style of doing business’ is unambiguous: It does not encompass patent infringement claims.” Ins. Resp. Br. at 49.
Numerous cases do, indeed, categorically rule out “advertising injury” coverage for patent infringement.
See, e.g., Heritage Mut. Ins. Co. v. Advanced Polymer Tech., Inc.,
More importantly, however, many of the cases Insurers rely on are distinguishable from the facts before us. The bulk of the published case law addressing patent infringement as advertising injury deals with products the insured happened to advertise, rather than a means of advertising
*1018
that the insured used to market its own products. In
Heritage,
for example, the court addressed allegations of infringement arising from the manufacture and sale of a patented piping product — “a distinctly different claim from alleging that [the policy holder] took an idea about how to solicit business or advertise the underground piping product.”
In the present case, by contrast, Dish allegedly committed patent infringement by using RAKTL’s technology to sell Dish’s own non-infringing satellite television products and services. Several courts considering similar facts have affirmatively held that where an advertising technique itself is patented, its infringement may constitute advertising injury.
See Hyundai Motor Am. v. Nat. Union Fire Ins. Co. of Pittsburgh, Pa.,
The
Hyundai
court noted the general rule that “to constitute an advertising injury, the third-party claim must concern the ‘elements
of the advertisement itself
— in. its text[,] form, logo or pictures — rather than in the product being advertised.’”
Insurers correctly point out that Dish’s policies do not expressly extend coverage for patent infringement, though they specifically list certain other intellectual property offenses. Ins. Resp. Br. at 8 (citing Aplt.App. at 208, 431, 479, 536, 964 (covering “[i]nfringement of copyright, title or slogan”)). Other courts have rejected the duty to defend patent suits on this basis.
See, e.g., Owens-Brockway Glass Contain
*1019
er, Inc. v. Int’l Ins. Co.,
In response, Dish argues that four of its policies are at least ambiguous because only the fifth includes an intellectual property exclusion which specifically
withdraws
coverage for patent infringement. Dish Op. Br. at 51-52; Reply Br. at 24. Citing
Union Insurance Co. v. Land and Sky, Inc.,
Nonetheless, we do conclude that “misappropriation of advertising ideas,” in the context of this case, is ambiguous and must be construed in favor of coverage. As Insurers note, “policy terms may be ambiguous as applied to one set of facts, but unambiguous as applied to another.” Ins. Resp. Br. at 24 (citing
Allstate,
Numerous cases suggest that while the advertisement of an infringing product will not qualify, the infringement of a patented advertising idea will.
See, e.g., Iolab,
Moreover, to categorically exclude patent coverage merely because a policy enumerates other intellectual property violations would conflict with the principle, well established in Colorado, that exclusions are strictly construed against the insurer and “must be written in clear and specific language.”
Bohrer v. Church Mut. Ins. Co.,
In short, the scope of advertising injury coverage in this ease is at least ambiguous with regard to patent infringement allegations. Although the cases are rare in which an allegedly infringed patent is itself an advertising idea rather than merely an advertised product, we find persuasive the
Hyundai
and
Amazon
courts’ approach to this unusual situation. Construing ambiguous policy language in favor of coverage, as we must under Colorado law, we hold that “[depending on ‘the context of the facts and circumstances of th[e] case,’ patent infringement can qualify as an advertising injury if the patent ‘involve[s] any process or invention which could reasonably be considered an “advertising idea.” ’ ”
Hyundai,
E. Misappropriation of Advertising Ideas or Style of Doing Business
We turn now to the first prong of the
Novell
analysis: whether the complaint potentially alleged a predicate offense,
viz.,
“misappropriation of advertising ideas or style of doing business.”
Novell,
1. Advertising Ideas
The district court determined that Dish had engaged in advertising activities, but held that it had not misappropriated “advertising ideas.”
Dish,
Critical to our analysis is the meaning of “advertising,” a term which the insurance policies at issue generally fail to define.
7
Colorado law, moreover, provides little guidance as to the proper interpretation of “advertising ideas or style of doing business;” only one case seems to define, at least partially, the latter phrase. In
Tynan’s Nissan, Inc. v. American Hardware Mutual Insurance Co.,
the Colorado Court of Appeals noted that a generic style of doing business must be related to advertising activities to constitute a covered “style of doing business.”
Given the lack of Colorado authority on the topic, we look to other jurisdictions.
In re Marriage of Ciesluk,
We need not definitively choose among these definitions because under any of them, the underlying complaint in this case can be read to potentially allege the misappropriation of advertising ideas. 8 The *1022 complaint asserts that Dish infringed one or more claims in each of twenty-three patents held by RAKTL. Insurers concede that some of these patents explicitly claim the technology’s capacity for advertising. Ins. Resp. Br. at 60 (citing Aplt. App. at 2269, 2271, 2681). Further, Insurers concede that “the patented technology could theoretically be used for advertising purposes.” Id. at 39.
The complaint, from the four corners of which the duty to defend must be determined, potentially alleges advertising simply because it provides no insight into what “pay-per-view ordering and customer service functions” entail. We cannot rule out the possibility that these activities involve not only the passive acceptance of sales requests, but also the active promotion of products through the dissemination of information, such as pricing and programming options. The functions patented by RAKTL conceivably allow Dish not only to sell the product a consumer calls up to purchase, but also to make up-sell offers 9 tailored to the specific caller. When the technology’s patented advertising capabilities are considered in conjunction with the vague factual assertions made in the complaint, the allegations are sufficiently broad to encompass “distribution of promotional materials,” “dissemination of information to promote a product,” or “calling something to the attention of the public.”
Read liberally, the complaint generally alleges that Dish misappropriated a product: it allegedly used, made, sold, or offered for sale a telephone system patented by RAKTL. More specifically, however, the complaint may be read to allege actions that misappropriated patented advertising ideas, insofar as the product at issue was designed expressly for product promotion and dissemination of advertising information.
Cf. Amazon, 85
P.3d at 977 (concluding that because “Amazon’s website exists for the purpose of promoting products for sale to the public____ [the underlying] complaint thus
implicitly
alleged that Amazon used its product in the course of advertising” (emphasis added)). Thus, this case differs from the typical scenario in which the policy holder merely advertised a product it had already misappropriated.
See, e.g., Simply Fresh Fruit, Inc. v. Cont’l Ins. Co.,
Insurers insist that “[a]s RAKTL does not contend that Dish
actually
used the technology for advertising purposes, Dish’s theoretical ability to do so is irrelevant.” Ins. Resp. Br. at 40 (emphasis in original). This, however, misapprehends the applicable legal standard. The question, under Colorado law, is not whether the complaint unequivocally spells out the specific advertising activities Dish engaged in, but rather whether “the alleged facts even potentially fall within the scope of coverage.”
Constitution Assocs. v. New Hampshire
*1023
Ins. Co.,
We are particularly mindful, in this regard, of the Colorado Supreme Court’s admonition that where “there is some doubt as to whether a theory of recovery within the policy coverage has been pleaded, the insurer must accept the defense of the claim.”
Compass Ins. Co. v. City of Littleton,
Arguing that the complaint does not allege advertising injury, Insurers rely heavily on
Discover.
Ins. Resp. Br. at 36-41. In that case, the district court dealt with allegations of patent infringement which, as in this case, were brought by RAKTL.
Discover,
Citing
Discover,
however, Insurers argue that “[c]ountless technologies could potentially be used to advertise: a cash register that prints coupons on the backs of receipts; a loudspeaker that announces in-store specials; a football stadium jumbotron that plays a beer commercial.” Ins. Resp. Br. at 40. Insurers contend that telephone interface systems, like these other technologies, “are not inherently advertising ideas because they also have non-promotional uses.”
Id.
It bears mentioning that Insurers’ examples might be more helpful if this were a patent infringement claim for the use of a telephone instead of the automated telephone interface systems actually at issue. But even so, nothing in the words “advertising ideas” suggests that the ideas must have no potential applications outside the field of advertising. Indeed, in
Hyundai,
the complaint alleged that the “feature [at issue] constituted ‘making and using supply chain methods, sales methods, sales, systems, marketing methods, marketing systems, and inventory systems.’ ”
In reaching our conclusion, we reject the district court’s reasoning that Dish cannot have misappropriated advertising ideas because it did not incorporate patented technologies as a substantive element of its communications and interactions with customers.
Dish,
Similarly, in
Amazon,
the court decided that “technology that provides a method by which consumers can download and listen to portions of pre-selected music over the Internet” was “an element of Amazon’s advertisement.”
Like the district court, however, we are unpersuaded by Insurers’ argument that any promotion Dish engaged in must be excluded from coverage as “one-on-one solicitation” simply because “[a] telephone conversation is, with very limited exception, a two-party interaction.” Ins. Resp. Br. at 32 (quoting
Dish,
Recorded promotions offered over the telephone may generally be heard only by one caller at a time over any given phone line. But as the
Hyundai
and
Amazon
courts acknowledged, internet advertisements do not become solicitation simply because they are not viewed by a multitude of potential customers simultaneously. Indeed, even a billboard advertisement on a public road may promote a product to only one driver at a time if traffic is light. It is the availability of an advertisement to the general public, as opposed to the number of people on the phone line at a given moment, that we consider dispositive.
See
*1025
Hyundai,
2. Style of Doing Business
The district court determined that Dish had not misappropriated a style of doing business because it did not take the specific manner in which RAKTL, the patent holder, operated its own business.
Dish,
In
Novell,
this court declined to define “style of doing business.”
Novell,
The RAKTL complaint does not even potentially allege infringement of any trade dress RAKTL, Dish, or any other company employs. Further, whatever “pay-per-view ordering and customer service functions” over the telephone may entail, it is far from an “allegation that plaintiff misappropriated [RAKTL’s] comprehensive manner of operating his business.”
Novell,
F. Causation
Having determined that the underlying complaint in this suit potentially alleges the misappropriation of advertising ideas, we must decide whether the complained-of injury arose in the course of advertising, *1026 as the policy language requires. Ins. Resp. Br. at 9 (“The policies also require that the ‘advertising injury’ be ‘caused by an offense committed in the course of advertising your goods, products or services.’ ” (quoting Aplt.App. at 210, 425, 473, 531, 953, 1009-10)). 11 If RAKTL’s injury was not actually caused by advertising activities, there is no duty to defend. As we have recognized, this causation requirement exists because
[vjirtually every business that sells a product or service advertises, if only in the sense of making representations to potential customers. If no causal relationship were required between “advertising activities” and “advertising injuries,” then “advertising injury” coverage, alone, would encompass most claims related to the insured’s business.
Novell,
Courts have arrived at several very different understandings of causation in this context.
See Frog, Switch,
Under any test, our causation analysis must begin with a determination of what the alleged injury actually is and where it arose. According to Insurers, in this case the injury lies in Dish’s development of infringing technology, and “[t]he infringement was complete as soon as Dish developed the telephone system with advertising
capabilities
— before any customer actually heard the system’s recorded material.” Ins. Resp. Br. at 63 (emphasis in original). If true, this would be a strong argument against the existence of any causal connection — this case would be much like
Simply Fresh Fruit,
where the alleged misappropriation of manufacturing technology was complete before the insured ever engaged in advertising by showing the technology off on factory tours.
Insurers cite no record evidence or case in support of their argument, however, and it appears to be contradicted by the underlying complaint. In it, RAKTL alleges that it “has been, and continues to be, damaged and irreparably harmed by [Dish’s] infringement, which will continue unless [Dish] is enjoined by this Court.” ApltApp. at 168 (emphasis added). More specifically, RAKTL alleges that Dish “employs the inventions of certain of the *1027 patents-in-suit. [RAKTL] has repeatedly attempted to engage each defendant in licensing negotiations, but to date, none of the defendants have agreed to take a license to any of the patents-in-suit.” Id. at 163. These allegations clearly indicate that the harm RAKTL complains of was not fully accomplished at a single point in the past when Dish’s system was first developed. Rather, the patent holder claims to have suffered — and to continue to suffer — harm from Dish using its patented technologies without paying for a license. As we have already determined, this alleged unlicensed use potentially includes advertising activities.
Evidently, then, this is not a case in which an insured manufactured an infringing product and then merely advertised its misdeed.
Cf. Microtec,
Arguing to the contrary, Insurers rely primarily on
Delta Computer Corp. v. Frank,
*1028
To the extent that
Delta
and
Discover
conflict with Colorado law and our analysis above, we decline to follow them here. Whether or not the Third Circuit properly applied Louisiana law in
Delta,
its approach is inconsistent with Colorado’s rule that a duty to defend arises wherever the complaint even potentially alleges conduct within the policy language.
Compass,
Moreover, to adopt Insurers’ argument that “[t]here is no causal nexus where the injury could have occurred separate and apart from any advertising,” Ins. Resp. Br. at 61, would seem to require that advertising be the sole cause of the alleged injury. Yet only National Union, among the five Insurers, actually included a requirement that “injury aris[e] solely out of ... advertising” in the policy it sold Dish. ApltApp. at 208. To impose a duty to defend under the other policies only if advertising alone, and nothing else, caused injury would give the other four insurers the benefit of a “more rigorous” causation standard than they bargained for. Colorado law does not allow us to alter the parties’ contracts in this way.
McGowan v. State Farm Fire & Cas. Co.,
III.
We REVERSE the district court’s grant of summary judgment to the Insurers and REMAND for further proceedings. While we agree with the district court’s conclusion that patent infringement may, under certain circumstances, constitute “misappropriation of advertising ideas,” we disagree with its ruling that the patented means of conveying advertising content at issue here could not be “advertising ideas” within the meaning of Dish’s commercial general liability policies. As regards the duty to defend, we hold that the RAKTL complaint “may arguably fall within the policies]” at issue,
Cyprus,
Several issues the district court did not address remain to be resolved. In their response brief, Insurers raise arguments regarding unique language in the policies issued by Arch and National Union; specifically, they argue that Arch’s intellectual property exclusion and National Union’s sole causation requirement bar coverage. Ins. Resp. Br. at 66-70. The excess insurers, Arch, National Union, and XL, also contend that they have no duty to defend in the absence of a showing that Dish’s primary policy coverage has been exhausted.
Id.
at 70. The district court did not reach these arguments, as it decided the case in favor of Insurers on other grounds.
Dish,
Notes
. DISH Network Corporation is a citizen of Nevada and Colorado and DISH Network LLC is a citizen of Colorado. The defendant Insurers are citizens of New York and Nebraska (Arch), Delaware and North Carolina (Arrowood), New York and Pennsylvania (National Union), Connecticut (Travelers), and Connecticut and Delaware (XL).
See Dish Network Corp. v. Arch Specialty Ins. Co.,
. Dish was formerly known as EchoStar Communications Corporation and EchoStar Satellite LLC. Although the district court stated that "[djefendant Insurers contest whether EchoStar Satellite LLC is covered under the policies,”
Dish,
. Neither party disputes the district court’s determination that Colorado law applies in this diversity action.
Dish,
. The district court and the parties have framed the analysis in three parts, asking (1) whether advertising took place; (2) whether the complaint alleged misappropriation of an advertising idea or style of doing business; and (3) whether such misappropriation caused the injury of which the underlying plaintiff complains. As the district court noted,
Dish,
"While we substantively applied Utah law in answering these questions [in
Novell
], there is no reason why we should not utilize the same two-part structure in answering this question under [Colorado] law.”
IDG, Inc. v. Cont’l Cas. Co.,
. We also recognize that patent law has changed since some of the cases categorically ruling out patent infringement coverage were decided. An amendment to the Patent Act that became effective in 1996 added “offers to sell” as potentially patent-infringing conduct, in addition to the making, using, or selling of patented inventions.
Dish,
We reject, however, Dish’s argument that the 1996 amendment is relevant in this case. Dish Rep. Br. at 22-23. The change in the law merely allows for an offer to sell a patented product to constitute infringement. It says nothing new about whether the
use
of an infringing product to promote products and services can be advertising injury.
Amazon,
. Our holding also renders moot Dish's argument that the district court abused its discretion in limiting the scope of discovery with regard to this issue.
. The exception is the Arch policy, which defines "advertisement” as “a notice that is broadcast or published to the general public or specific market segments about your goods, products, or services for the purposes of attracting customers or supporters.” Aplt. App. at 1011. However, the parties have not argued that Arch merits separate consideration on this basis.
. While Colorado cases have not defined "advertising” in this setting, broad definitions are discussed in other contexts.
See, e.g., Watson v. Pub. Serv. Co. of Colo.,
. An "up-sell” is a "sales pitch for additional products or services” made to a customer calling to place an order.
See West Corp. v. Super. Ct.,
. Indeed, Insurers imply that Dish’s customer service telephone system would constitute an "advertising idea” if it let a customer preview pay-per-view movies over the telephone, just as Amazon allowed previewing of music over the internet. See Ins. Resp. Br. at 35, 42. But if the complaint potentially alleges use of the system for other information-disseminating purposes that are also advertising, the result should be no different.
. We note that the National Union policy employs apparently more restrictive language. Aplt.App. at 208 (requiring that the injury arise "solely” from the advertising activities). As discussed below, we do not decide here whether this language relieves National Union of its duty to defend. See infra at 1028-29.
