Digital Verification Systems LLC v. Unified Patents, Inc.

This case, Digital Verification Systems LLC v. Unified Patents, Inc., centers on a patent validity dispute that reached the U.S. Court of Appeals for the Federal Circuit (CAFC) under case number 20-1002. Digital Verification Systems LLC (DVS) is identified as a Non-Practicing Entity (NPE), also referred to as a "patent troll," known for asserting patents against numerous companies, particularly those offering e-signature software and services. DVS has been linked to prolific inventor Leigh Rothschild, who has used U.S. Patent No. 9,054,860 to sue over 50 different entities, many of which are small businesses. Conversely, Unified Patents, Inc. is a member-based organization dedicated to reducing "frivolous patent litigation" and deterring NPE patent assertions by proactively challenging the validity of such patents, primarily through Inter Partes Reviews (IPRs) before the Patent Trial and Appeal Board (PTAB).

The sole patent at issue, U.S. Patent No. 9,054,860, generally covers a "process method for electronically signing digital documents safely." Technically, its claims describe a "module generating assembly" that processes a "verification data element" to create a "digital identification module," which is then "at least partly associated" with an item. This technology intersects with cybersecurity, digital identity, and document workflow automation. Unlike traditional patent infringement lawsuits, this proceeding did not involve an "accused product" in the district court. Instead, Unified Patents initiated an IPR, seeking to invalidate the patent, which led to the PTAB issuing an adverse judgment against DVS.

The procedural posture of the case involves Digital Verification Systems LLC appealing the PTAB's decision to the U.S. Court of Appeals for the Federal Circuit, the exclusive appellate court for patent matters. The CAFC affirmed the PTAB's adverse judgment on June 29, 2020. This case is notable as it exemplifies a common defensive strategy employed by Unified Patents to counter NPE assertions by challenging patent validity at the PTAB. The affirmance of the PTAB's decision at the Federal Circuit further reinforces the viability of IPRs as a mechanism to address potentially low-quality patents, particularly in widely adopted technology areas like e-signatures, providing a measure of relief for the many companies that have been, or could be, targeted by similar assertions.

Digital Verification Systems LLC v. Unified Patents, Inc. (CAFC 20-1002) - Key Legal Developments

This case represents an appeal to the U.S. Court of Appeals for the Federal Circuit (CAFC) from a decision by the Patent Trial and Appeal Board (PTAB). The core of the dispute involved the patentability of claims from U.S. Patent No. 9,054,860, owned by Digital Verification Systems LLC (DVS).

Parallel PTAB IPR Proceedings

• IPR Petitions Filed (2018): Unified Patents, Inc., known for challenging patents asserted by non-practicing entities (NPEs) like DVS, filed at least two inter partes review (IPR) petitions against U.S. Patent No. 9,054,860: IPR2018-00745 and IPR2018-00746.
• Adverse Judgment in IPR2018-00746 (2018-10-10): In IPR2018-00746, the PTAB entered an adverse judgment against Digital Verification Systems LLC, finding claims 23-39 of U.S. Patent No. 9,054,860 unpatentable. Digital Verification Systems indicated during a conference call on October 4, 2018, that it would "not challenge this Board's decision as to the IPR petition" and "do[es] not oppose the Board entering an adverse judgment against the Patent Owner."
  • Note on Claim Discrepancy: While the PTAB decision explicitly concerns claims 23-39, the Federal Circuit case caption in the prompt states that DVS appealed the adverse judgment "regarding claims 1-22 of US Patent 9054860." It is possible that the Federal Circuit appeal 20-1002, despite its broader description in the case metadata, ultimately resolved issues stemming from the broader IPR challenges, or there was a related IPR (IPR2018-00745, for instance) that addressed claims 1-22 and led to this specific appeal, with the same parties. Given the direct citation of IPR2018-00746 and the adverse judgment in a district court filing related to the same patent owner and patent, this IPR is highly likely the underlying PTAB proceeding, even with the differing claim number details. Without the specific CAFC opinion document, this discrepancy remains noted.

Appeal to the Federal Circuit (20-1002)

• Appeal Filed: Digital Verification Systems LLC appealed the PTAB's adverse judgment to the U.S. Court of Appeals for the Federal Circuit under case number 20-1002. The exact filing date of the appeal is not immediately available from public search results, but the case terminated in mid-2020, suggesting the appeal was filed in late 2019 or early 2020.
• Final Disposition - Affirmed (2020-06-29): The Federal Circuit affirmed the PTAB's decision on June 29, 2020. The affirmation indicates that the CAFC upheld the PTAB's finding that the challenged claims of U.S. Patent No. 9,054,860 were unpatentable.

Outcome

The Federal Circuit's affirmation of the PTAB's decision is a victory for Unified Patents, Inc., as it successfully invalidated claims of US Patent 9054860. For Digital Verification Systems LLC, this outcome means that the challenged claims of their patent were found unpatentable, impacting its ability to assert those claims in patent infringement litigation. DVS has been noted for asserting this patent in numerous infringement lawsuits against companies providing e-signature software. The invalidation of claims via IPR proceedings, affirmed by the Federal Circuit, serves to curb such assertions.

This case involves an appeal to the Federal Circuit regarding a PTAB decision, not an initial patent infringement case in a district court. While Digital Verification Systems LLC (DVS) has been actively involved in numerous patent assertion cases, the information regarding their counsel in the specific Federal Circuit appeal (20-1002) is less widely publicized than for district court infringement actions.

Based on available information for Digital Verification Systems LLC in general patent litigation, and given the nature of the Federal Circuit appeal from an IPR, the following firms and attorneys have been identified as potentially representing or having represented Digital Verification Systems LLC in similar intellectual property matters. It's important to note that specific counsel for this particular CAFC case (20-1002) are not immediately and clearly identifiable through general web searches, but these firms have experience representing patent owners in IPRs and Federal Circuit appeals.

• Porter Hedges LLP

  • Role: Potentially lead counsel (or having significant involvement in patent owner representation in similar matters).
  • Office Location: Houston, Texas.
  • Experience: Porter Hedges has a strong intellectual property practice, including seasoned patent litigators with a demonstrated record of success in high-stakes patent disputes, both enforcing patent rights and defending against infringement claims. They are experienced in all phases of a case through appeal, including Inter Partes Review proceedings before the PTAB, representing patent owners.

• Neal, Gerber & Eisenberg LLP

  • Role: Potentially lead counsel (or having significant involvement in patent owner representation in similar matters).
  • Office Location: Chicago, Illinois.
  • Experience: Neal Gerber Eisenberg's Patent Litigation group provides trial-tested litigation teams for patent cases, representing clients from Fortune 500 corporations to high-tech start-ups. They have achieved results in federal trial courts, the Federal Circuit Court of Appeals, and before the USPTO Patent Trial and Appeal Board. Their patent attorneys have experience with appeals to the Federal Circuit and inter partes proceedings in the PTAB.

It's worth noting that in other infringement cases involving Digital Verification Systems, LLC, attorneys like Randall T. Garteiser of Garteiser Honea PLLC have represented the plaintiff, particularly in patent assertion cases before the Eastern District of Texas. However, the role of this firm in the specific CAFC appeal 20-1002 is not confirmed by current search results.

For the Federal Circuit appeal in Digital Verification Systems LLC v. Unified Patents, Inc. (Case number: 20-1002), the defendant, Unified Patents, Inc., was represented by both in-house counsel and outside counsel.

Here is the counsel of record for Unified Patents, Inc.:

• Laura Vu (Lead Counsel)

  • Firm: Haynes and Boone, LLP
  • Office Location: Likely Dallas, TX, or Washington, D.C. (Haynes and Boone has offices in both, and the firm's attorneys Debra J. McComas and David L. McCombs, who have represented Unified Patents in other appeals, are based in Dallas).
  • Note: Ms. Vu handled the Federal Circuit argument for Unified Patents in this case and similar appeals where Unified Patents was represented by in-house counsel and Haynes and Boone for the Federal Circuit argument.

• Jordan Rossen (In-house Senior Patent Counsel)

  • Firm: Unified Patents, Inc.
  • Office Location: Washington, D.C. (Unified Patents' headquarters).
  • Note: Prior to joining Unified Patents in 2019, Mr. Rossen practiced intellectual property litigation at Ropes & Gray and Paul Hastings for eleven years, representing clients before the PTAB, International Trade Commission, district courts, and Federal Circuit in various technology fields. He is involved in preparing and litigating post-grant proceedings for Unified Patents.

• Michelle Aspen (formerly Michelle Callaghan) (In-house Senior Patent Counsel)

  • Firm: Unified Patents, Inc.
  • Office Location: Washington, D.C. (Unified Patents' headquarters).
  • Note: Michelle Aspen prepares and litigates post-grant proceedings before the PTAB for Unified Patents. She has experience defending clients against patent demands in district courts, challenging patents before the PTAB, and preparing opinions on patent validity and infringement across a wide range of technologies. She has also been a speaker on PTAB amendment data and practice.