Lead Opinion
Dissenting opinion filed by Circuit Judge O’Malley.
In separate petitions, Appellee Apple Inc. (“Apple”) sought inter partes review of claims 1-11, 14-25, and 28-30 of U.S. Patent No. 8,504,697 (“the ’697 patent”) before the U.S. Patent and Trademark Office’s Patent Trial and Appeal Board (“PTAB”). The PTAB instituted reviews of the subject claims and, in separate final written decisions, found the subject claims anticipated by or obvious over various prior art references. See Apple Inc. v. VirnetX Inc. (VirnetX I), No. IPR2014-00237,
Appellant VirnetX Inc, (“VirnetX”), the assignee- of the ’697 patent, appeals. We affirm, resolving the subject appeals on the grounds discussed by the PTAB in Vir-netX II.
I. Subject Matter Jurisdiction and Standard of Review
We possess subject matter jurisdiction pursuant to 28 U.S.C. § 1295(a)(4)(A) (2012). “We review the PTAB’s factual findings for substantial evidence and its legal conclusions de novo.” Redline Detection, LLC v. Star Envirotech, Inc.,
II. The PTAB Properly Found Claims 1-11, 14-25, and 28-30 of the ’697 Patent Invalid
VirnetX challenges various aspects of VirnetX II. In particular, VirnetX alleges that the PTAB (1) misconstrued various limitations of claims 1, 3, and 16-17 of the ’697 patent, Appellant’s Br. 36-52; (2) made unpatentability findings in the absence of supporting expert evidence, id. at 30-36; and (3) failed to apply the proper legal standard in its anticipation analysis and otherwise did not support its anticipation and obviousness findings with substantial evidence, id, at 61-69. After briefly discussing the ’697 patent’s contents, we address the arguments in turn.
A. The’697 Patent
A brief review of Internet communications will provide the context necessary to understand the invention claimed in the '697 patent. Communications over the Internet generally follow the Transmission Control Protocol/Internet Protocol, under which each computer connected to the Internet possesses a unique Internet Protocol (“IP”) address (e.g., 123.345.6.7) that allows other computers to identify that computer. A domain name server (“DNS”) generally links an IP address to a particular domain name (e.g., www.pbs.org).
Entitled “System and Method Employing an Agile Network Protocol for Secure Communications Using Secure Domain Names,” the ’697 patent “provides key technologies for implementing a secure virtual Internet by using a new agile network protocol that is built on top of [an] existing” IP address. ’697 patent col. 611. 23-25. As relevant here, the ’697 patent recites the use of a proxy DNS to establish a secure network. Id. col. 39 1. 29-col. 42 1. 16. Under the protocol disclosed by the ’697 patent, a first device requests a connection to a second device using the domain name of that second device, after which the proxy DNS receives the request and looks up the IP address of the second device. Id. col. 4011. 4-30. Before returning an IP address to the first device, the proxy DNS determines whether the first device is requesting access to a secure domain name and has sufficient security privileges before returning an IP address to the first device. Id. col. 40 11. 32-38, col. 4111. 6-16, col. 41 1. 47-col. 42 1. 16. If it does, the proxy DNS initiates a secure connection to create a virtual private network (“VPN”) between the first and second devices. Id. col. 40 11. 31-49. When the proxy DNS establishes the VPN, the proxy DNS does not reveal the actual IP address of the target device, thus providing the secure communication that the invention claims. Id. col. 4011.1-20.
The instant appeals concern claims 1-11, 14-25, and 28-30 of the ’697 patent. Independent claim 1 is representative and recites
[a] method of connecting a first network device and a second network device, the method comprising:
*883 intercepting, from the first network device, a request to look up an ... [IP] address of the second network device based on a domain name associated with the second network device; determining, in response to the request, whether the second network device is available for a secure communications service; and
initiating a secure communication link between the first network device and the second network device based on a determination that the second network device is available for the secure communications service;
wherein the secure communications service uses the secure communication link to communicate at least one of video data and audio data between the first network device and the second network device.
Id. col. 5611.11-27. Dependent claims 2-11 and 14-15 depend directly or indirectly from claim 1 and provide additional limitations to the method disclosed in .claim 1. See id. col. 56 11. 28-53 (claims 2-11), col. 561. 65-eol. 571. 3 (claims 14-15). Independent claim 16 covers a system configured to perform the method of claim 1. See id. col. 57 11. 4-21. Dependent claims 17-25 and 28-30 depend directly or indirectly from claim 16 and provide additional limitations to the system disclosed in claim 16. See id. col. 571. 21-col. 58 1.10 (claims 17-25), col. 5811.21-31 (claims 28-30).
B. The Construction of the Subject Claims
We begin with the construction of various claims in the ’697 patent. VirnetX challenges the PTAB’s construction of three limitations in the subject claims: “secure communication link” in claims 1 and 16, Appellant’s Br. 36-48; “determining ... whether the second network device is available” in the same claims, id. at 49-52, 64-65; and “virtual private network communication link” in claims 3 and 17, id. at 48-49.
Two separate reasons counsel against construing the disputed limitations. First, in challenging the PTAB’s conclusion in VirnetX II that the subject claims are invalid, VirnetX does not dispute that the relevant prior art references disclose, teach, or suggest “secure communication link” and “virtual private network communication link.” See Appellant’s Br. 61-69. As a result, the proper construction of these limitations has no bearing on our review of the PTAB’s anticipation and obviousness findings in VirnetX II. Accordingly, we will not construe them. Cf. Hoffer v. Microsoft Corp.,
Second, as to “determining ... whether the second network device is available” in claims 1 and 16, VirnetX has waived its arguments on the construction of this limitation. The waiver doctrine “preclude^] a party from adopting a new claim construction position on appeal.” Interactive Gift Express, Inc. v. Compuserve Inc.,
C. The PTAB May Make Factual Findings Absent Expert Testimony
We next address VimetX’s contention that the PTAB unlawfully made various factual findings in its anticipation and obviousness inquiries. According to Vir-netX, the PTAB cannot “make factual findings regarding what [a person having ordinary skill in the art (‘PHOSITA’) ] would have understood with respect to the [prior art] references in the absence of any supporting expert testimony” except in cases involving “simple” technology. Appellant’s Br. 31, 34. And because “the technology involved is undisputedly complex,” VirnetX avers that the PTAB could not have made “unpatentability findings in the absence of any supporting expert evidence.” Id. at 31.
VirnetX’s argument ignores governing law. In Belden Inc. v. Berk-Tek LLC, we held that “[n]o rule requires ... an expert [to] guid[e] the [PTAB] as to how it should read prior art.”
Nevertheless, “what the [PTAB] can find without an expert depends on the prior art involved in a particular case.” Synopsys, Inc. v. Mentor Graphics Corp.,
Finally, VirnetX alleges that, “in contested proceedings,” the PTAB may not “improperly substitute[] its own analysis of the [prior art] references” for the expert’s. Appellant’s Br. 33. We disagree. Although “it is impermissible for the [PTAB] to base its factual findings on its expertise, rather than on evidence in the record,”
D. The PTAB Properly Found the Subject Claims Anticipated by, or Obvious over, the Prior Art
We next address the PTAB’s conclusions that the subject claims are anticipated by, or would have been obvious over, various prior art references. VirnetX challenges both the PTAB’s anticipation and obviousness findings, so we address them in turn.
1. Anticipation
“A person shall be entitled to a patent unless,” inter alia, “the invention was described in ... a patent granted on an application for patent by another filed in the United States before the invention by the applicant for patent_” 35 U.S.C. § 102(e) (2006).
The PTAB found that U.S. Patent No. 5,898,830 (“Wesinger”) anticipates claims 1-3, 8-11, 14-17, 22-25, and 28-30 of the ’697 patent. VirnetX II,
VirnetX challenges the PTAB’s anticipation findings as to claims 1, 8-9, and 22-23, grouping its arguments into two categories. The first concerns the PTAB’s findings as to claim 1 and the second concerns the PTAB’s findings as to claims 8-9 and 22-23. Appellant’s Br. 62-68. We address them in turn.
a. ' Claim 1
Claim 1 recites in relevant part “determining, in response to the request, whether the second network device is available for a secure communications service.” ’697 patent col. 56 11. 16-18. VirnetX avers that the PTAB erred in finding that Wesinger discloses this limitation. Appellant’s Br. 64-67.
VirnetX next argues that substantial evidence does not support the PTAB’s finding that Wesinger discloses the disputed limitation. According to VirnetX, the PTAB improperly premised its finding on the assertion that a PHOSITA “would have understood that if a connection with a virtual host is determined to be allowed if all rules are satisfied (as Wesinger discloses), then the virtual host would be determined to be ‘available’ for the connection,” as claim 1 recites. Appellant’s Br. 65 (emphases added) (internal quotation marks, brackets, and citation omitted). We disagree.
For a reference to anticipate, it “need not satisfy an ipsissimis verbis test.” In re Gleave,
Substantial evidence supports the PTAB’s finding. For example, one embodiment in the ’697 patent’s specification discloses that “DNS proxy .., determines whether the user has sufficient security privileges to access the site. If so, DNS proxy ... requests] that a [VPN] be created between user computer ... and secure target site....” ’697 patent col. 40 11. 36-40. Other embodiments similarly demonstrate that “available” encompasses “allowed.” See id. col. 41 11. 14-32 (explaining an embodiment in which a check is made “to determine whether the user is authorized to connect to the secure host” by “reference to an internally stored list” and “if the user has sufficient security privileges, then ... a secure VPN is established between the user’s computer and the secure target site”), 47-51 (explaining an embodiment in which a “[c]lient has permission to access target computer” and “the client’s DNS request would be .., forwardfed] ... to gatekeeper” which “would establish a VPN between the client and the requested target”), 57-61 (explaining an embodiment in which a “[c]lient does not have permission to access target computer” and the “gatekeeper would reject the request”). Thus, because the subject patent’s specification does not disclose “an embodiment .., in which the availability of the second network device is deter-
VirnetX argues further that Wesinger does not anticipate the disputed limitation because Wesinger operates in a manner different from the disputed limitation. Appellant’s Br. 65-67. The disputed limitation in claim 1 requires that “determining ... whether the second network device is available” occurs “in response to the request” to “look up an [IP] address of the second network device based on a domain name associated with the second network device.” ’697 patent col. 56 11. 13-17. By contrast, VirnetX avers that Wesinger “discloses two types of requests”—first, a “DNS query (i.e., a request to look up an IP address)” and, second, a “connection request” that triggers a determination to allow or deny connection. Appellant’s Br. 65, 66 (internal quotation marks and citations omitted). VirnetX alleges that Wes-inger does not anticipate the disputed limitation because the second step in Wesinger does not occur in response to a request to look up an IP address based on a domain name, as the disputed limitation requires. See id. at 66-67.
Substantial evidence supports the PTAB’s finding that the second step in Wesinger occurs in response to a request to look up an IP address. For example, Wesinger discloses that, in response to a “connection request” for a domain name, the DNS “in effect says to the requestor ‘Use virtual host X.X.X.X.,’ where X.X.X.X. represents an IP address.” Wesinger col. 10 11. 58-61. As the PTAB explained, this passage in “Wesinger explicitly discloses that, responsive to the ‘connection request,’ an IP address ... of a network device is provided based on a domain name ... that is included in the ‘connection request.’” VirnetX II,
b. Claims 8-9 and 22-23
Claims 8 and 22 require that “at least one of the first network device and the second network device” recited in claims 1 and 16 “is a-mobile device,” and claims 9 and 23 further require that the “mobile device” be a “notebook computer.” ’697 patent col. 56 11. 43-47 (claims 8-9), col. 58 11. 1-5 (claims 22-23). VirnetX argues that substantial evidence does not support the PTAB’s finding that Wesinger discloses a “notebook computer.” Appellant’s Br. 67-68. According to VirnetX, the PTAB acknowledged that Wesinger discloses only a “computer,” but nevertheless “proceeded to speculate—without any evidence whatsoever”—that a PHOSITA would have found that Wesinger also discloses a “notebook computer.” Id. at 68.
“[T]he disclosure of a small genus may anticipate the species of that genus even if the species are not themselves recited.” Bristol-Myers Squibb Co. v. Ben Venue Labs., Inc.,
2. Obviousness
Finally, we turn to the PTAB’s obviousness findings. A patent claim is invalid “if the differences between the subject matter sought to be patented and the prior art are such that the subject matter as a whole would have been obvious at the time the invention was made to a [PHOSITA] to which said subject matter pertains.” 35 U.S.C. § 103(a) (2006).
The PTAB found that claims 4-7 and 18-21 would have been obvious over a combination of two prior art references— Wesinger and M. Handley et al., SIP: Session Initiation Protocol (Network Working Grp. Request for Comments: 2543, March 1999) (“RFC 2543”) (J.A. 2566). VimetX II,
Instead of addressing the PTAB’s particular findings as to the combination of Wesinger and RFC 2543, VirnetX argues that it presented expert testimony on the prior art references and that, rather than
VirnetX’s arguments do not demonstrate a lack of substantial evidence in support of the PTAB’s obviousness findings. As stated above in Section II.C, the PTAB may make factual findings absent expert testimony. Here, the PTAB examined Wesinger and RFC 2543 and found that the references do not teach away from one another, citing various aspects of Wesinger and RFC 2543 to support its conclusion. See VirnetX II,
Conclusion
The PTAB found the subject claims of the ’697 patent invalid for other reasons. See generally VirnetX I,
AFFIRMED
Notes
. As stated above, the PTAB issued VirnetX I in IPR2014-00237 and VirnetX II in IPR2014-00238.
. At various points, the dissent alleges that the record contains no evidence to support the PTAB’s findings. See Dissent at 3 (arguing that the PTAB failed to "point to the actual evidence in the record to support its conclusions”). At others, it alleges that the record
. Congress amended § 102 when it passed the Leahy-Smith America Invents Act ("AIA”). Pub. L. No. 112-29, § 3(b)(1), 125 Stat. 284, 285-87 (2011). However, because the application that led to the ’697 patent was filed before March 16, 2013, the pre-AIA § 102 applies. Id. § 3(n)(l),
. Congress amended § 103 when it passed the AIA. Pub. L. No. 112-29, § 3(c),
Dissenting Opinion
dissenting.
Because the Board based its factual findings on an inadequate record, I dissent from today’s judgments. Although there is no per se requirement that the Board rely on expert testimony to reach a finding of invalidity, this court has long recognized that “ ‘expert testimony regarding matters beyond the comprehension of laypersons is sometimes essential,’ particularly in cases involving complex technology.” Wyers v. Master Lock Co.,
This matter is not, as Apple suggests, the exceptional case in which “ ‘the references and the invention are easily understandable,’” such that “Board members, because of expertise, may ... find it easier to understand and soundly explain the teachings and suggestions of prior art without expert assistance.” Belden v. Berk-Tek LLC,
Indeed, Apple itself submitted over four hundred pages of expert testimony below in support of its invalidity contentions, apparently believing such a detailed record was necessary. It was only once its own expert’s testimony was proven unreliable that Apple switched gears and claimed that it had no obligation to present expert testimony. Apple first contends that the Board actually did rely on expert testimony to support its conclusions because it cited to admissions from VirnetX’s expert to support its conclusions. That argument is a nonstarter. Apple provides only a handful of examples on this point, covering a single factual finding, relevant to only one aspect of one of the two proceedings before us, a point Apple’s counsel conceded at oral argument. Oral Argument at 20:49-20:58, available at http://oralarguments. cafc,uscourts.gov/default.aspx?fl=2015-1934.mp3 (“The Board specifically referred to VirnetX’s expert on the issue of teaching away.... On some other issues, the Board found that VirnetX’s expert was not credible.”). The Board’s opinions, of course, go significantly farther than that single issue.
Apple next contends that the Board was free to reach conclusions about what one of skill in the art woulfl glean from the multiple prior art references at issue in the absence of expert testimony because it could rely on its own expertise to assess those references. That argument also fails. While it is certainly true, as the majority notes, that the Board’s expertise “plays a role in interpreting record evidence,” it may not act as a substitute for such evidence. Maj. Op. at 8 (quoting Brand v. Miller,
In particular, this case bears a striking resemblance to Brand, where the Board “rejected as unconvincing the only relevant testimony,” but nevertheless found that “one skilled in the art ... would have recognized” how certain elements depicted in the prior art could have been arranged to perform a claimed method. Brand,
