MEMORANDUM OPINION AND ORDER
In September 2005, plaintiffs Diamonds.net LLC, Internet Diamond Exchange, LLC, Martin Rapaport, and Rapa-port USA (collectively, “Rapaport”) filed suit against defendants (collectively, “Idex”) asserting ten claims relating to defendants’ alleged infringement of plaintiffs’ intellectual property rights. Rapa-port’s tenth claim alleged that Idex was infringing U.S. Patent No. 5,950,178. Both Rapaport and Idex operate websites for buying and selling diamonds. The patent is directed at a system for facilitating transactions in precious stones.
Idex responded by filing a counterclaim which alleged that the patent was invalid. After discovery, Rapaport dismissed the infringement claim with prejudice and covenanted not to sue Idex under the patent for any of Idex’s activities before February 20, 2008. Rapaport now moves to dismiss Idex’s invalidity counterclaim, arguing that because there is no longer an actual controversy over infringement, the Court lacks jurisdiction to adjudicate the patent’s validity. The Court finds, however, that in the particular circumstances of this case, *595 an actual controversy as to the patent’s validity persists. Rapaport’s motion must therefore be denied.
I. BACKGROUND
The parties to this action operate rival websites for buying and selling diamonds. Rapaport’s properties include the “Internet Diamond Exchange,” a full service exchange that guarantees payment to suppliers and delivery to buyers, and “RapNet,” a dealer-to-dealer trading network. (See Index@ [sic] Internet Diamond Exchange, http://www.diamonds.net/Info/AboutIndex. aspx (last visited Nov. 26, 2008); RapNet Diamond Trading Network, http://www. diamonds.net/Info/AboutRapnet.aspx (last visited Nov. 26, 2008).) Idex’s property, “IDEX Online,” bills itself as “[t]he world’s only fully automated, wholesale, online trading service for industry professionals.” (Idex Online, International Diamond and Jewelry Exchange [sic], https://www. idexonline.com/index.asp (last visited Nov. 26, 2008).)
On August 26, 2005, Rapaport filed a “Fifth Amended and Supplemented Complaint” (“Compl.”). In its tenth claim for relief, the complaint alleged that Idex was infringing U.S. Patent No. 5,950,178 (the “Borgato” patent) by listing, selling, offering for sale, and facilitating the sale of diamonds on its website. (Compl. ¶¶ 138, 140.) The patent, which is controlled by Rapaport, is directed at “a data processing system and method for facilitating transactions in precious stones such as diamonds.” (Borgato Patent at [57].) The complaint demanded disgorgement of profits, treble damages, attorneys fees, and costs. (Compl., at 33.)
On November 30, 2006, Idex filed a counterclaim challenging the validity and enforceability of the Borgato patent. (See Answer to Compl. & Counterclaim Against All Pis. ¶ 165 (Nov. 30, 2005).) Idex also denied that its website infringed the Borgato patent. (Id. ¶ 166.) As relief, Idex asked that the Court declare the Borgato patеnt invalid and unenforceable. (Id. at 21.)
On December 13, 2007, the parties submitted a proposed order that dismissed the infringement claim with prejudice. The order, however, purported not to impact the invalidity counterclaim. The Court entered the order on December 19, 2007.
Two months later, on February 19, 2008, Rapaport moved to dismiss the counterclaim, arguing that in the absence of a dispute over infringement, the Court lacks jurisdiction to adjudicate Idex’s invalidity claim. 1 With its motion, Rapaport submitted a covenant not to sue. In it, Rapapоrt “unconditionally and irrevocably covenanted] not to assert any claim of patent infringement ... against Idex ... under the Borgato Patent, as it currently reads, based on IDEX’s website located at www. idexonline.com as it currently existed] as of the date of this covenant, or previously existed.” (Covenant Not To Sue (Feb. 19, 2008).)
Opposing Rapaport’s motion, Idex contends there is still a live dispute over the validity of the patent, because Idex plans to launch an upgraded version of its website that will potentially practicе the Bor-gato patent. (See Def.’s Surreply to Pl.’s Mot. to Dismiss Def.’s Fifth Counterclaim 2-8 (Apr. 21, 2008) (“Def.’s Second *596 Mem.”)-) In support of this point, Idex submitted (1) screenshots of its upgraded website, (2) a patent application that describes a system Idex developed that potentially practices the Borgato patent, and (3) a declaration by Idex Online S.A.’s chief executive officer outlining Idex’s future plans. (See Decl. of Abraham Stern in Supp. of Def.’s Opp. to Pl.’s Mot. to Dismiss Def.’s Fifth Counterclaim & Exs. A, B (Mar. 3, 2008) (“Stern Decl.”).)
For its part, Rapaport principally contends that Idex’s future рlans are speculative and thus do not meet the “immediacy and reality” requirements of
MedImmune, Inc. v. Genentech,
II. DISCUSSION
When a party attempts to strategically moot a case, two basic principles of federal jurisdiction come into conflict: first, that federal jurisdiction is limited to cases of actual controversy between the parties,
see, e.g., United States v. Johnson,
The conflict, however, is more apparent than real. While the second principle might suggest that a court should respond to jurisdictional gamesmanship by continuing to exercise jurisdiction, the first principle — an unwaivable constitutional limitation on the authority of the federal courts — precludes it from doing so unless the generally applicable elements of Article III jurisdiction are present. Thus, in spite of this case’s unusual procedural history, the issue prеsented by Rapaport’s motion is a familiar one: Is there an actual controversy over the validity of the Borga-to patent capable of supporting a declaratory judgment action?
A. The “Actual Controversy” Requirement
The Declaratory Judgment Act provides that “[i]n a case of actual controversy within its jurisdiction ... any court of the United States ... may declare the rights and other legal relations of any interested party seeking such declaration. ...” 28 U.S.C. § 2201. “The phrase ‘case of actual controversy’ ‘refers to the type of ‘Cases’ and ‘Controversies’ that are justiciable under Article III [of the Constitution].”
Sony Elecs., Inc. v. Guardian Media Techs., Ltd.,
Soon after the Declaratory Judgment Act’s passage, the Supreme Court held in
Aetna Life Insurance Co. of Hartford, Connecticut v. Haivorth,
Four years later, the Court noted in
Maryland Casualty Co. v. Pacific Coal & Oil Co.,
MedImmune,
which disapproved the Federal Circuit's “reasonable apprehension of suit” test for identifying disputes that support a declaratory judgment action, confirmed that these standards continue to apply in patent disputes. There, the Supreme Court held that a patent licensee is not required to terminate a license agreement before seeking a declaration that the patent which is the subject of the agreement is invalid.
Since
MedImmune,
the Federal Circuit has applied the actual controversy requirement in a number of diverse factual circumstances.
See, e.g., Micron Tech., Inc. v. Mosaid Techs., Inc.,
B. An Actual Controversy Continues To Support Idex’s Invalidity Counterclaim
Here, because the dispute between the parties extends beyond Rapaport’s initial infringement claim and the specific version of Idex’s website it implicated, the Court finds that Idex’s counterсlaim continues to be supported by an actual controversy.
First, the Court notes that plaintiffs are sophisticated business entities that are not, so to say, hesitant to make a federal ease out of perceived invasions of their rights. During this litigation, plaintiffs have filed or requested leave to file six versions of their complaint (one was stricken), a motion for a preliminary injunction, a motion for judgment on the pleadings, numerous motions to compel, motions opposing the filing of documents under seal, and a motion for sanctions. While a threat of suit is not necessary to declaratory judgment jurisdiction,
Sony Elecs.,
It is in this context that the Courts notes — and credits — Mr. Stern’s contention that Idex’s upgraded website will potentially infringe the Borgato patent. As noted, the patent is directed at “a data processing system and method for facilitating transactions in precious stones such as diamonds.” Borgato Patent, at [57]. In the system, sellers input data for stones they wish to sell. See id. Aftеr a server stores that data, buyers bid on stones from remote terminals. See id. A server generates a matrix with the lowest offer price, the highest bid price, and the last sales price for each category of stone. Id. If a bid price and an offer price match, the server executes a sales agreement, and the buyer and seller complete the transaction via a third-party escrow. See id.
Mr. Stern testified that in the upgraded Idex system,
the buyer inputs a price per carat ‘My Bid (p.e.)’ AND an expiration time in hours ‘Expires in (hours)’ after selection of a diamond stone record. This ‘My Bid’ data is then transmitted by the IDEXONLINE bid communication service to the seller. The seller then accepts or rejects the ‘My Bid’ within the ‘bid open’ time period set by the ‘Expires in (hours)’ data input by the buyer-bidder.
(Stern. Deck ¶ 8; see also id. Exs. C-l & C-2 (screenshots depicting system); Ex. B to Def.’s Second Mem. (further screen-shots).) Like the system covered by the Borgato patent, Idex’s upgraded system appears to automatically execute sales transactions when an offer and a bid match. (See Ex. A to Def.’s Second Mem., at 1 (describing system as “a fully auto *599 mated online polishеd diamond trading service guaranteeing availability and ... delivery of purchased diamond [sic] to buyers and immediate cash payment to sellers”).) While it clearly would be premature to find that the upgraded system in fact infringes the Borgato patent, the overlap between the systems — including the collection of bids and offers by a server, the use of matrixes to organize that data, and the automatic execution of sales agreements between buyers and sellers who agree on price — demonstrates the reasonableness of Stern’s claim that Idex is afraid of an ongoing infringement dispute with Rapaport. {See Stern Decl. ¶ 13.)
In addition, the Court credits Mr. Stern’s contention that Idex plans to roll out its upgraded system in the United States in the near future. After
MedImmune,
“the issue of whether there has been meaningful preparation to conduct potentially infringing activity remains an important element in the totality of circumstances which must be considered in determining whether a declaratory judg ment is appropriate.”
Cat Tech,
Lastly, the Court notes the significant costs that have been expended in litigation over the Borgato patent. While such sunk costs do not provide an independent basis for federal jurisdiction, they do require close scrutiny of Rapaport’s claim that the actual controversy that indisputably existed at the beginning of this litigation has in fact ended.
See Friends of the Earth v. Laidlaw Environmental Services (TOC), Inc.,
C. Rapaport’s Objections
Rapaport raises four principal objections to this conclusion.
1. The Effect of the Covenant
First, Rapaport argues that its covenant not to sue is “truly unconditional” and therefore “deprives the Court of subject *600 matter jurisdiction over defendants’ patent counterclaim.” (Pl.’s Second Mem. 13; see also Pl.’s Third Mem. 8-9.) This is true enough insofar as Idex’s activities before February 20, 2008 are concerned. But as the discussion .till now makes clear, the decisive issue is whether Idex’s activities after that date support a declaratory judgment action.
In this respect, it is useful to note the differences between Idex’s invalidity counterclaim and the one in
Super Sack Manufacturing v. Chase Packaging Corp.,
Two factors distinguish this case from
Super Sack.
First, Rapaport’s covenant not to sue is arguably narrower than the one in
Super Sack.
While the covenant in
Super Sack
covered all “products currently manufactured and sold” by the defendant,
2. Idex’s Failure to Raise the Upgraded Website in its Initial Counterclaim
Next, Rapaport argues that under
Beni-tec,
there is a fatal gap in the controversy supporting the Court’s jurisdiction.
(See
Pl.’s Third Mem. 5.) Specifically, Rapaport contends that because Idex did not disclose its upgraded system until after Ra-paport filed its covenant not to sue in February 2008, Idex has not shown a controversy that “existed at the time the claim for declaratory relief was filed and ...
has continued since.” Benitec,
*601
First, it ignores the burdens of production and persuasion that apply when a patent’s validity is challenged in a cоunterclaim to an infringement action. As
Cardinal Chemical
and
Benitec
teach, a party challenging the validity of a patent always bears the ultimate burden of showing that an actual controversy supports the action, regardless of whether the challenge is brought via a freestanding action or a counterclaim.
See Cardinal Chemical,
Idex discharged its burdens under this framework. Because Rapaport charged Idex with infringing the Borgato patent, the Court initially presumed that an aсtual controversy supported Idex’s validity counterclaim. See supra p. 598. When Rapa-port entered a covenant not to sue, it introduced “further evidence” that called the Court’s jurisdiction over the invalidity counterclaim into doubt. The burden thus shifted back to Idex to show an actual controversy supporting its validity action, which it did by introducing evidence that its plans to launch an upgraded website are held back by the possibility that Rapa-port will continue to enforce the Borgato patent. Cardinal Chemical and Benitec require nothing further.
Rapaport’s argument also miscom-prehends the rule that “an actual controversy must be extant at all stages of review, not merely at the time the complaint is filed.”
Steffel v. Thompson,
3. Likelihood of Success on the Merits
Rapaport next contends that there is not a continuing controversy, because Idex’s upgraded system cannot possibly infringe the Borgato patent. (See Pl.’s Second Mem. 8-9.) In particular, Rapaport points to a claim chart produced by Idex’s expert that lists seven reasons why the Idex system does not infringe the Borgato patent, and claims on this basis that Idex hаs conceded there is no longer a live controversy.
This attempt to hoist Idex on its own petard confuses the showing needed to establish a case or controversy with the showing necessary to prove infringement. The Declaratory Judgment Act requires only “a substantial controversy, between parties having adverse legal interests, of sufficient immediacy and reality to warrant the issuance of a declaratory judgment.”
MedImmune,
4. Discretion
Finally, Rapaport urges the Court to decline to hear Idex’s counterclaim in the exercise of its discretion, arguing that “allowing IDEX to ‘shoehorn’ this new claim into the litigation at this late stage, after ... misleading Rapaport into dismissing its own claims, would work a manifest injustice.” (Pl.’s Third Mem. 9.)
“[A] district court is authorized, in the sound exercise of its discretion, to stay or to dismiss an action seeking a declaratory judgment before trial or after all arguments have drawn to a close,” particularly when doing so is cоnsistent with “considerations of practicality and wise judicial administration.”
Wilton v. Seven Falls Co.,
The Court cannot conclude that Rapaport was “misled” into dismissing its infringement action. And in light of the considerable time and cost already expended in litigation over the Borgato patent, the likelihood that Rapaport will reassert the Borgato patent against Idex, and the “importance to thе public at large of resolving questions of patent validity,”
Cardinal Chem.,
III. CONCLUSION
Rapaport’s motion to dismiss Idex’s counterclaim for lack of subject matter jurisdiction [104] is denied.
Notes
. Rapaport stipulated to terms of the December 19 order, but claims that further research revealed that "fuller consideration of the [jurisdictional] question merited the Court's attention.” (Pl.’s First Mem. at 3.) The Court, which appreciates Rapaport’s attention to the limits on its authority, need not consider the effect of Rapaport’s stipulation, since subject matter jurisdiction "can never be forfeited or waived.”
Sharkey v. Quarantillo,
. Although
Super Sack's
analysis remains instructive, the decision is no longer controlling precedent. In its most important analytical passage,
see
. In a variation on this objection, Rapaport contends that Idex should not be allowed to rely on the upgraded website because it did not disclose it in response to a broad discovery request for "[a]ll documents concerning the research, specifications, design, development, operation, engineering, or evaluation of the IDEX Syslem[.]” (Pl.’s Second Mem. 9-10.) Since Rapaport has not shown that Idex’s failure to provide the information earlier was unjustified, that failure cannot support the drastic sanction (i.e., dismissal) Rapaport now seeks.
