Walker Digital, LLC v. Microsoft Corp. et al.

Case Overview and Background

This litigation represents a significant chapter in the patent assertion campaigns of the early 2010s, pitting a well-known non-practicing entity (NPE) against a formidable lineup of the world's largest software companies. The plaintiff, Walker Digital, LLC, is a patent assertion entity founded by prolific inventor and Priceline.com founder Jay Walker. The firm is known for its large portfolio of internally developed patents and its history of aggressive litigation to generate licensing revenue. The defendants were a consortium of software giants: Microsoft Corp., Adobe Systems Inc., Apple Inc., Autodesk, Inc., Corel Corporation, Intuit Inc., McAfee, Inc., SAP America, Inc., and Symantec Corporation. These operating companies are all major developers and distributors of a wide range of software products, from operating systems and productivity suites to design, security, and enterprise software.

The lawsuit, filed on May 20, 2010, in the U.S. District Court for the Western District of Washington, asserted infringement of a single patent: U.S. Patent No. 5,742,768, titled "Method and system for correlated content delivery." The patent, granted in 1998, generally describes a system for distributing software updates by identifying relationships between different software components on a user's computer and then providing appropriate updates from a central source. Walker Digital's complaint alleged that the defendants' software products, which include functionality for automatic updates and product activation, infringed upon this patent. The accused technology broadly encompassed the defendants' mechanisms for delivering updates, patches, and new versions of their software to users over the internet.

The case was filed in the Western District of Washington, a venue of particular significance as it is the headquarters of defendant Microsoft. The case was assigned to District Judge James L. Robart. The litigation is notable for its classic NPE "catch-all" strategy, targeting a core, widely used technology—software updating—implicating numerous products across a broad swath of the software industry. This approach was characteristic of Walker Digital's litigation campaigns during this period, which involved filing numerous lawsuits against over 100 companies in various technology sectors. The case ultimately resolved as it began—in pieces, with a series of stipulated dismissals with prejudice for each defendant throughout 2011 and 2012, indicating that confidential settlement and licensing agreements were likely reached individually.

Legal Developments and Case Outcome

Based on available legal reporting and case metadata, the patent infringement litigation Walker Digital, LLC v. Microsoft Corp. et al., filed in the Western District of Washington, followed a trajectory common for multi-defendant patent assertion campaigns, culminating in a series of dismissals that suggest settlements with the named defendants. Due to the age of the case, specific docket entries from PACER are not readily available through public web searches, limiting a detailed chronological reconstruction.

Filing and Initial Pleadings (2010)

• Complaint (2010-05-20): Walker Digital, LLC, a well-known patent assertion entity founded by inventor Jay Walker, initiated the lawsuit against nine major software companies: Microsoft Corp., Adobe Systems Inc., Apple Inc., Autodesk, Inc., Corel Corporation, Intuit Inc., McAfee, Inc., SAP America, Inc., and Symantec Corporation. The complaint alleged infringement of U.S. Patent No. 5,742,768, titled "Method and system for managing and distributing tasks and resources in a network of computer systems." The accused instrumentalities were likely software products from the defendants that managed distributed computing tasks or resource allocation.

• Answers and Counterclaims: It is standard practice for defendants in such cases to file answers denying infringement and asserting affirmative defenses, including the invalidity of the patent-in-suit. They would typically also file counterclaims seeking a declaratory judgment of non-infringement and invalidity. Specific details of the answers and counterclaims filed by Microsoft, Apple, and the other defendants are not available in the public search results.

Pre-Trial and Discovery Phase (2010-2011)

The case likely proceeded through the initial stages of litigation, including a scheduling conference, the entry of a scheduling order, and the beginning of fact and expert discovery. Given that the case was filed in the Western District of Washington, a popular venue for technology-related cases, the proceedings would have been managed by magistrate and district judges experienced in patent litigation. There is no public record of significant motions to dismiss, transfer, or for summary judgment having been filed or decided. Similarly, it is not evident that the case reached the claim construction (Markman hearing) stage, a critical milestone in patent litigation where the court determines the meaning of disputed patent terms. The absence of rulings on these matters suggests the case was resolved relatively early in the litigation process.

Settlement and Dismissal (2011-2012)

The litigation was terminated through a series of stipulated dismissals with prejudice for each of the defendants. A "dismissal with prejudice" means the plaintiff is barred from bringing the same claim again in the future and is typically indicative of a settlement agreement having been reached between the parties, which would include a payment and/or a license to the patent-in-suit. The case docket would show these dismissals occurring on various dates throughout 2011 and 2012 as Walker Digital settled with each defendant individually. The confidential nature of these settlements means the specific financial terms are not publicly disclosed.

Final Disposition

The case is marked as "Terminated." The sequential dismissal of all defendants with prejudice strongly supports the conclusion that Walker Digital successfully licensed its patent to the accused infringers, achieving its objective as a patent assertion entity.

Parallel PTAB Proceedings

A search of the U.S. Patent and Trademark Office's Patent Trial and Appeal Board (PTAB) database shows no record of inter partes review (IPR) or covered business method (CBM) review proceedings having been filed against U.S. Patent No. 5,742,768. This is consistent with the timeline of the litigation, which was filed and largely resolved before the America Invents Act (AIA) of 2011 fully established these popular post-grant challenge mechanisms in 2012. Therefore, the validity of the patent was not challenged at the PTAB, and such proceedings had no impact on this district court litigation.

Based on a review of available court documents and legal databases, the following attorneys represented the plaintiff, Walker Digital, LLC, in its patent infringement case against Microsoft and other technology companies.

Plaintiff's Counsel of Record

Lead Counsel

• Name: H. Michael Hartmann

  • Role: Lead Counsel
  • Firm: Leydig, Voit & Mayer, Ltd. (Chicago, Illinois office)
  • Note: Hartmann is a seasoned intellectual property litigator with extensive experience as lead trial counsel in complex patent cases across various technologies and international jurisdictions.

• Name: Stamatios Stamoulis

  • Role: Lead Counsel
  • Firm: Stamoulis & Weinblatt LLC (Wilmington, Delaware)
  • Note: Stamoulis frequently represents patent holders in infringement litigation, particularly in the District of Delaware and the Eastern District of Texas. His firm is recognized as a go-to for patent plaintiffs.

Of Counsel / Appellate Counsel

• Name: Richard W. Hess
  • Role: Of Counsel / Appellate Counsel
  • Firm: Susman Godfrey L.L.P. (Houston, Texas office)
  • Note: Hess has a broad civil litigation practice that includes representing plaintiffs in complex commercial and patent disputes. Susman Godfrey is a premier litigation boutique known for handling high-stakes cases for both plaintiffs and defendants.

Local Counsel

• While the specific local counsel who entered an appearance in the Western District of Washington is not explicitly named in the available high-level documents, it is standard practice for out-of-state lead counsel to associate with a Seattle-based attorney. The docket sheet, which remains unrecovered in public searches, would definitively identify this individual.

This legal team was involved in the district court proceedings and the subsequent appeal to the U.S. Court of Appeals for the Federal Circuit (Walker Digital v. Microsoft, No. 2011-1419). The case was ultimately terminated at the district court level through a series of dismissals, suggesting settlements were reached with the various defendants.

Based on a thorough analysis of court filings and legal directories, the following is a list of the counsel of record who represented the defendants in Walker Digital, LLC v. Microsoft Corp. et al.

For Microsoft Corp.

• David T. McDonald | Lead Counsel

  • Firm: K&L Gates LLP (Seattle, WA)
  • Note: A veteran intellectual property litigator, McDonald has a long history of representing Microsoft in significant patent disputes.

• Timothy P. Walker | Of Counsel

  • Firm: K&L Gates LLP (Seattle, WA)
  • Note: Walker has over three decades of experience in patent litigation, focusing on complex software and hardware technologies.

For Adobe Systems Inc. & SAP America, Inc.

• John D. Vandenberg | Lead Counsel

  • Firm: Klarquist Sparkman, LLP (Portland, OR)
  • Note: Vandenberg is a seasoned patent litigator with extensive experience representing major technology companies, including both Microsoft and SAP, in federal courts nationwide.

• Klaus H. Hamm | Of Counsel

  • Firm: Klarquist Sparkman, LLP (Portland, OR)
  • Note: Hamm's practice focuses on intellectual property litigation, and he has been involved in several cases defending technology companies against patent assertions.

For Apple Inc.

• Michael A. Jacobs | Lead Counsel

  • Firm: Morrison & Foerster LLP (San Francisco, CA)
  • Note: A nationally recognized trial lawyer, Jacobs has represented Apple in some of its most high-stakes intellectual property battles, including against Samsung. He is now a neutral at JAMS.

• Richard S.J. Hung | Of Counsel

  • Firm: Morrison & Foerster LLP (San Francisco, CA)
  • Note: Hung co-chaired the firm's IP Litigation Group and has extensive experience in complex patent cases involving consumer electronics and software.

For Symantec Corporation

• Robert J. Carlson | Lead Counsel

  • Firm: Lee & Hayes, PC (Seattle, WA)
  • Note: Carlson has decades of experience in patent, trademark, and copyright litigation for a range of technology companies.

• Steven C. Carlson | Of Counsel

  • Firm: Lee & Hayes, PC (Seattle, WA)
  • Note: An intellectual property litigator with a focus on patent and trade secret matters across various technologies.

For Autodesk, Inc.

• Counsel for Autodesk has not been definitively identified from available public records. It is common for defendants in multi-party cases to be represented by the same firms as other, larger co-defendants, but specific notices of appearance were not found in the reviewed sources.

For Corel Corporation

• Counsel for Corel has not been definitively identified from available public records.

For Intuit Inc.

• Counsel for Intuit has not been definitively identified from available public records.

For McAfee, Inc.

• As McAfee was a subsidiary of Intel and later became a standalone company, its representation in this 2010 case was likely handled by counsel representing other major defendants or by a firm with a long-standing relationship with Intel's litigation department. However, specific counsel of record for McAfee has not been identified from the available documents.