TQP Development, LLC v. Callidus Software, Inc.

Case Overview and Background

This litigation involved a patent infringement claim by TQP Development, LLC, a prolific non-practicing entity (NPE), against Callidus Software, Inc., an enterprise software and SaaS company. Filed in November 2012 in the U.S. District Court for the Eastern District of Texas, the case centered on allegations that Callidus's sales performance and management software infringed TQP's patent on data encryption technology. The case is representative of the surge in patent litigation filed by NPEs in the Eastern District of Texas during that era, a venue favored by patent plaintiffs for its plaintiff-friendly rules and juries. The matter was ultimately tied to a parallel patent review proceeding at the USPTO and concluded with a settlement.

The plaintiff, TQP Development, LLC, is a Texas-based limited liability company known for acquiring patents and engaging in extensive litigation campaigns across various industries. It has been characterized as a patent assertion entity (PAE). The defendant, Callidus Software, Inc. (also known as CallidusCloud), was a California-based company that provided cloud-based software for sales, marketing, and finance, including configure-price-quote (CPQ) and sales performance management (SPM) solutions. Callidus was later acquired by SAP SE in 2018. The lawsuit accused Callidus's software products, which handle sensitive sales and compensation data, of infringing TQP's patent covering methods for secure data transmission.

The single patent at issue was U.S. Patent No. 5,412,730, titled "Encrypted Data Transmission System Employing Means for Randomly Altering the Encryption Keys." The '730 patent, issued in 1995, generally describes a method for securely transmitting encrypted data over a communication link by using a shared "seed value" at both the transmitter and receiver to generate identical, pseudo-random sequences of encryption keys that change based on a characteristic of the data being sent. This case was filed in the Tyler Division of the Eastern District of Texas and was initially assigned to Chief Judge Leonard Davis, a prominent figure in patent law, before being reassigned to Judge J. Rodney Gilstrap. This venue was strategically important for patent holders due to its local patent rules, experienced judges, and a history of large verdicts for plaintiffs. The case gained notoriety as part of TQP's massive litigation campaign involving the '730 patent against over 100 companies and for its direct link to a Covered Business Method (CBM) review, which Callidus initiated at the Patent Trial and Appeal Board (PTAB) to challenge the patent's validity. The district court case was stayed pending the CBM review, and the parties ultimately reached a settlement, leading to the termination of the PTAB proceeding and the dismissal of the court case with prejudice in December 2013.

Key Legal Developments and Outcome

The patent infringement litigation between TQP Development, LLC and Callidus Software, Inc. was a relatively short-lived case, heavily influenced and ultimately resolved by a parallel proceeding at the Patent Trial and Appeal Board (PTAB).

Filing and Initial Stages (2012–2013)
TQP Development, LLC filed its complaint against Callidus Software on November 20, 2012, in the Eastern District of Texas, alleging infringement of U.S. Patent No. 5,412,730. The case was initially assigned to Chief Judge Leonard Davis and was one of hundreds of similar cases filed by TQP asserting the '730 patent. On January 14, 2013, as part of a broader caseload redistribution within the district, the case was reassigned to Judge J. Rodney Gilstrap.

Parallel PTAB Proceeding (2013)
The pivotal strategic development occurred outside the district court. On October 11, 2013, Callidus Software filed a petition with the USPTO for a Covered Business Method (CBM) patent review, challenging the validity of the '730 patent. This move, designated as Case No. CBM2014-00007, aimed to invalidate the patent at the administrative level, offering a more efficient and specialized forum than district court litigation. The CBM program, created by the America Invents Act, was a popular tool for defendants in software and financial services patent cases to challenge patent validity on grounds such as being directed to an abstract idea under 35 U.S.C. § 101.

While the district court case did not have a formal stay entered on the docket, the filing of the CBM petition effectively paused meaningful litigation progress. Standard practice in the Eastern District of Texas at the time was often to await the PTAB's decision on whether to institute a review before ruling on a motion to stay.

Settlement and Dismissal (2013)
Before the PTAB could issue a decision on whether to institute the CBM review, the parties moved to resolve the dispute. On December 2, 2013, TQP and Callidus entered into a settlement agreement. Following the agreement, on December 3, 2013, the parties filed a joint motion to terminate the CBM proceeding at the PTAB. Concurrently, they filed a Stipulated Motion for Dismissal with Prejudice in the district court action.

The case officially concluded on December 4, 2013, when Judge Gilstrap signed the order dismissing all claims and counterclaims with prejudice, with each party bearing its own costs and attorneys' fees. This swift resolution, just over a year after the case was filed and less than two months after the CBM petition, highlights the significant leverage that the then-new PTAB proceedings provided to defendants in patent litigation. The termination of the PTAB review meant that no estoppel attached to Callidus regarding the validity arguments raised in its petition.

Counsel for Plaintiff TQP Development, LLC

Based on a review of court filings and legal directories, the following attorneys represented the plaintiff, TQP Development, LLC in this matter.

• Marc A. Fenster | Lead Counsel

  • Firm: Russ August & Kabat (Los Angeles, CA)
  • Note: Fenster is a nationally recognized patent trial lawyer and a founding partner of his firm's patent litigation group, known for representing patent holders in high-stakes litigation.

• Brian D. Yates | Of Counsel

  • Firm: Russ August & Kabat (Los Angeles, CA)
  • Note: Yates has extensive experience in patent prosecution and litigation, often working alongside Marc Fenster on significant patent enforcement campaigns.

• Steven R. Borgman | Local Counsel

  • Firm: Vinson & Elkins LLP (at the time of filing); now with Kilpatrick Townsend & Stockton LLP (Houston, TX).
  • Note: A seasoned Texas-based intellectual property litigator, Borgman has frequently served as local counsel in the Eastern District of Texas for out-of-state firms.

It is noted that TQP Development, LLC was a prolific plaintiff in the Eastern District of Texas, and this team of attorneys represented TQP in numerous other cases asserting the same '730 patent against a wide array of defendants. The combination of a nationally-prominent patent enforcement firm like Russ August & Kabat with experienced and respected Texas local counsel was a common and effective strategy for NPEs litigating in the district during this period.

Counsel for Defendant Callidus Software, Inc.

Callidus Software, Inc. was represented by attorneys from the national intellectual property firm Kramer Levin Naftalis & Frankel LLP, along with local counsel from Texas.

• Jonathan S. Caplan - Lead Counsel

  • Firm: Kramer Levin Naftalis & Frankel LLP, New York, NY.
  • Note: Caplan is a seasoned patent litigator who represents clients in federal district courts across the country and has experience with post-grant proceedings before the USPTO. At the time of the case, he was deputy chair of his firm's IP department and was later named co-chair in 2017.

• Robert P. Andris - Of Counsel

  • Firm: Kramer Levin Naftalis & Frankel LLP, New York, NY.
  • Note: Robert Andris was an associate at Kramer Levin during this period, working on patent litigation matters. He has since founded his own firm focusing on different practice areas.

• Wesley Hill - Local Counsel

  • Firm: Ward, Smith & Hill, PLLC, Longview, TX.
  • Note: As a partner in a well-known East Texas firm, Wesley Hill frequently serves as local counsel in patent cases due to his extensive experience litigating in the district.

These attorneys also represented Callidus in the parallel Covered Business Method (CBM) review (CBM2014-00007) that Callidus initiated against TQP's '730 patent. The joint motion to terminate that PTAB proceeding, filed after the parties settled, lists Jonathan S. Caplan and Robert P. Andris as counsel for petitioner Callidus Software. The district court case was one of many transferred to Judge J. Rodney Gilstrap in early 2013 as part of a judicial caseload realignment within the Eastern District of Texas.