Uniloc USA, Inc. et al. v. Sony Corporation of America et al.

This consolidated lawsuit was a significant chapter in the high-volume patent assertion campaigns of the early 2010s. The plaintiffs, Uniloc USA, Inc. and Uniloc Singapore Private Limited, are well-known patent assertion entities (PAEs), sometimes referred to as "patent trolls," which acquire patents to generate revenue through litigation and licensing. The defendants were a diverse group of major operating companies in the software, gaming, and entertainment industries, including Sony Corporation of America, video game publisher Activision Blizzard, Inc., and cybersecurity firm McAfee, Inc. This case is one of several Uniloc filed around the same time against numerous technology companies, leveraging a single patent to target a wide swath of the industry.

The lawsuit, filed on July 29, 2010, centered on U.S. Patent No. 5,490,216, titled "System for software registration." The '216 patent, invented by Ric Richardson, generally covers a method to prevent software piracy by creating a unique device fingerprint to ensure a program is used on only one machine, a technology commonly known as product activation. Uniloc alleged that the defendants' products, which included software with digital rights management (DRM) and anti-piracy features, infringed this patent. Specifically, the complaint targeted systems like Sony's SecuROM™ which required customers to activate or register software. The accused technologies spanned a broad range of products, from video games published by Activision to security software from McAfee.

The case was filed in the U.S. District Court for the Eastern District of Texas, a venue historically favored by patent plaintiffs for its fast trial schedule (or "rocket docket"), plaintiff-friendly reputation, and local rules seen as advantageous for patent holders. At the time, this court handled a disproportionately large number of the nation's patent cases. The case is notable as part of Uniloc's broad assertion of the '216 patent, which was previously asserted in a high-profile case against Microsoft that resulted in a large jury verdict before being largely overturned on appeal. The extensive litigation history of the '216 patent, which was asserted in at least 65 district court cases, and its eventual invalidation by the Patent Trial and Appeal Board (PTAB), underscores the significance of this and related Uniloc campaigns in the broader debate over PAE litigation models and patent quality. The case against Sony and the other defendants ultimately settled, which was a common outcome in Uniloc's multi-defendant litigations.

Key Legal Developments and Outcome

This patent infringement lawsuit was part of a large-scale litigation campaign by Uniloc involving U.S. Patent No. 5,490,216. The case was characterized by early, aggressive motion practice and ultimately resolved through settlements with all named defendants before proceeding to claim construction or trial.

Filing and Initial Pleadings (2010)

• 2010-07-29: Uniloc USA, Inc. and Uniloc Singapore Private Limited filed their complaint for patent infringement in the Eastern District of Texas against Sony Corporation of America, Sony DADC US Inc., Activision Blizzard, Inc., Aspyr Media, Inc., Borland Software Corp., McAfee, Inc., and Quark, Inc. The complaint alleged that the defendants' products, which included software activation and anti-piracy features like Sony's SecuROM™ digital rights management (DRM) technology, infringed the '216 patent. Uniloc sought damages and an injunction.
• Answers and Counterclaims: Following the complaint, the various defendants filed answers denying infringement and asserting counterclaims for declaratory judgment of non-infringement and invalidity of the '216 patent.

Pre-Trial Motions and Case Management (2011)

• Motion to Transfer Venue: The defendants collectively filed a motion to transfer venue to the Northern District of California under 28 U.S.C. § 1404(a) (Docket No. 73).
• 2011-05-20: In a significant Memorandum Opinion and Order, Judge Leonard Davis outlined the court's case management strategy for the seven concurrent Uniloc cases, which cumulatively involved 95 defendants. The court expressed concern about plaintiffs asserting "questionable patent claims against a large number of Defendants to extract cost of defense settlements." To manage this, the court instituted special procedures for early evaluation, including limited discovery and early mediation, which the court noted had already resulted in "numerous dismissals before claim-construction proceedings" in the broader Uniloc litigation campaign.
• 2011-09-20: Judge Davis denied the defendants' motion to transfer venue. The court found that the defendants had not met the high burden to demonstrate that the Northern District of California was a "clearly more convenient" forum. This order was issued as part of a consolidated ruling covering several of the Uniloc cases.

Claim Construction (Markman)

The case was resolved before a formal Markman claim construction hearing was held or a corresponding order was issued for the defendants in this specific action. The court's May 20, 2011 order indicated a plan to potentially hold a "mini-Markman" on a limited set of terms for any defendants remaining after early mediation, but the widespread settlements rendered this unnecessary. It is noteworthy that the '216 patent had undergone claim construction in a prior, lengthy litigation against Microsoft in the District of Rhode Island, and that court's constructions were later adopted by the Patent Trial and Appeal Board (PTAB) in subsequent invalidity challenges.

Settlement and Final Disposition (2011-2012)

The court's case management strategy successfully pushed the parties toward resolution. The docket reflects a series of settlements and dismissals throughout late 2011 and early 2012, effectively ending the case. While specific settlement terms were not publicly disclosed, the filings of joint motions to dismiss with prejudice as to each defendant marked the final outcome. The case status is officially listed as "Settled."

Parallel PTAB Proceedings

Years after this case settled, multiple petitions for inter partes review (IPR) were filed against the '216 patent at the Patent Trial and Appeal Board (PTAB) by other parties.

• Starting in 2014: Companies including Sega of America, Ubisoft, and Kofax filed IPR petitions challenging the validity of the '216 patent.
• 2016-03-00: In one of these proceedings, the PTAB issued a final written decision finding all 20 claims of the '216 patent unpatentable as obvious or anticipated by prior art.
• 2017-10-23: The U.S. Court of Appeals for the Federal Circuit affirmed the PTAB's decision, rendering the patent invalid.

Because these PTAB proceedings began long after the Uniloc v. Sony case was dismissed, they had no direct effect on its outcome. However, the ultimate invalidation of the patent retroactively underscores the invalidity defenses that were asserted by the defendants in this case.

Plaintiff's Counsel

Based on a review of the original complaint and other court filings, the following attorneys appeared on behalf of the plaintiffs, Uniloc USA, Inc. and Uniloc Singapore Private Limited.

• Name: James L. Etheridge

  • Role: Lead Counsel
  • Firm: Etheridge Law Group, PLLC (Southlake, TX)
  • Note: Etheridge has been involved in over 550 patent litigations and served as lead counsel for Uniloc in numerous campaigns, including a notable 2021 appeal against Apple. His practice focuses heavily on intellectual property litigation and advising on monetization strategies.

• Name: T. John Ward, Jr.

  • Role: Local Counsel
  • Firm: Law Office of T. John Ward, Jr., P.C. (Longview, TX)
  • Note: A prominent East Texas litigator, Ward Jr. frequently serves as local counsel in patent cases due to his extensive experience in the district. He is the son of the influential retired Eastern District of Texas Judge T. John Ward, who presided over many significant patent cases.

• Name: Robert M. Parker

  • Role: Of Counsel
  • Firm: Parker, Bunt & Ainsworth, P.C. (Tyler, TX)
  • Note: A former Chief Judge of the Eastern District of Texas and a former Circuit Judge for the U.S. Court of Appeals for the Fifth Circuit, Parker brought immense judicial insight to the plaintiff's team after returning to private practice. He passed away in August 2020.

• Name: William E. Davis, III

  • Role: Of Counsel
  • Firm: The Davis Firm, P.C. (Longview, TX)
  • Note: While listed on the original complaint, public records for an attorney named William E. Davis, III with a focus on patent litigation in Texas during this period are sparse. Other attorneys named William E. Davis have different specializations or locations, such as estate planning in Washington or a career in judicial administration in California. His specific role and experience in this case are not well-documented in available sources.

Counsel for Defendants

Following the consolidation of multiple lawsuits, the defendants retained a number of law firms to represent their interests. Below are the counsel of record identified from court filings and legal reporting for several of the key defendants.

For Activision Blizzard, Inc.

• Robert A. Van Nest (Lead Counsel)

  • Firm: Keker & Van Nest LLP (San Francisco, CA)
  • Noteable Experience: Known for representing major technology companies in high-stakes intellectual property disputes, including Google in its landmark copyright litigation against Oracle over Java.

• Brian L. Ferrall (Of Counsel)

  • Firm: Keker & Van Nest LLP (San Francisco, CA)
  • Noteable Experience: Has represented clients like Broadcom and Netflix in significant patent and trade secret litigation.

• Leo L. Lam (Of Counsel)

  • Firm: Keker & Van Nest LLP (San Francisco, CA)
  • Noteable Experience: Focuses on intellectual property litigation and has represented technology clients in patent disputes involving complex software and hardware.

• Michael E. Jones (Local Counsel)

  • Firm: Potter Minton P.C. (Tyler, TX)
  • Noteable Experience: A highly experienced trial lawyer in the Eastern District of Texas, frequently serving as local counsel for major companies in patent infringement cases.

For Sony Corporation of America & Sony DADC US Inc.

• David E. Sipiora (Lead Counsel)

  • Firm: Kilpatrick Townsend & Stockton LLP (Denver, CO)
  • Noteable Experience: Has represented numerous technology and media companies, including Apple and Oracle, in complex patent litigation across the country.

• Adam H. Charnes (Of Counsel)

  • Firm: Kilpatrick Townsend & Stockton LLP (Dallas, TX)
  • Noteable Experience: Focuses on intellectual property litigation with an emphasis on patent disputes in federal courts.

• Jennifer L. Tvrdy (Of Counsel)

  • Firm: Kilpatrick Townsend & Stockton LLP (Denver, CO)
  • Noteable Experience: Experience in patent infringement litigation involving a wide range of technologies.

• Charles Ainsworth (Local Counsel)

  • Firm: Parker, Bunt & Ainsworth, P.C. (Tyler, TX)
  • Noteable Experience: Served as local counsel for numerous defendants in the Eastern District of Texas, including in major patent cases against companies like Google and Samsung.

For McAfee, Inc.

• Robert M. Parker (Lead Counsel)

  • Firm: Parker, Bunt & Ainsworth, P.C. (Tyler, TX)
  • Noteable Experience: A former Chief Judge of the U.S. District Court for the Eastern District of Texas, he has extensive experience presiding over and litigating patent cases in the district.

• Trenton C. Parker (Of Counsel)

  • Firm: Parker, Bunt & Ainsworth, P.C. (Tyler, TX)
  • Noteable Experience: Represents clients in a variety of intellectual property matters, frequently appearing in the Eastern District of Texas.

For Aspyr Media, Inc.

• Kevin C. Burgess (Lead Counsel)

  • Firm: McKool Smith (Austin, TX)
  • Noteable Experience: Represents both plaintiffs and defendants in high-stakes patent litigation and has secured numerous significant verdicts and settlements.

• J. Austin Curry (Of Counsel)

  • Firm: Caldwell Cassady & Curry PC (Dallas, TX) - Note: Firm founded after this case.
  • Noteable Experience: Known for securing large patent infringement verdicts, including a $502.6 million verdict for VirnetX against Apple.

• Sam F. Baxter (Of Counsel)

  • Firm: McKool Smith (Marshall, TX)
  • Noteable Experience: A veteran trial lawyer in the Eastern District of Texas with a long history of representing clients in major patent infringement lawsuits.