Unified Patents v. Bishop Display Tech LLC

Unified Patents filed an Inter Partes Review (IPR) petition, IPR2022-00503, challenging US Patent 8,093,830, owned by Bishop Display Tech LLC. Unified Patents is a member-based organization dedicated to deterring frivolous patent litigation by Non-Practicing Entities (NPEs) and improving overall patent quality by initiating validity challenges such as IPRs. On the other side, Bishop Display Tech LLC operates as a Patent Assertion Entity (PAE), managed by the principals of IP Edge LLC, a well-known patent monetization firm with a history of extensive patent litigation. While IPRs do not involve "accused products" in the way district court infringement cases do, Bishop Display Tech has previously asserted US Patent 8,093,830 and related patents in district court against companies manufacturing thin-film-transistor liquid-crystal displays (TFT-LCDs) and products incorporating these displays, such as monitors, smartphones, and televisions.

The patent at issue, US Patent 8,093,830, is titled "Semiconductor Light Source Driving Apparatus and Semiconductor Light Source Driving Method." It describes a system for controlling a semiconductor light source (like an LED or laser diode) by regulating its power supply's output voltage based on detected current and the light source's impedance. The procedural posture of this case places it before the Patent Trial and Appeal Board (PTAB), a specialized administrative body within the U.S. Patent and Trademark Office (USPTO). This venue is critical because the PTAB offers a potentially faster and less costly forum for challenging patent validity compared to district court litigation, often serving as a strategic tool for entities like Unified Patents to neutralize patents asserted by NPEs. The case concluded in a settlement, a common outcome for IPRs initiated by Unified Patents when it aligns with their broader deterrence goals against NPE assertions.

This IPR is notable due to the parties involved and its connection to broader patent assertion patterns. Unified Patents' consistent targeting of patents held by prolific NPEs like Bishop Display Tech (an IP Edge entity) highlights ongoing efforts to combat perceived "patent trolling" and improve patent quality in key technology sectors. The challenge to a patent covering semiconductor light source driving technology reflects the high-stakes environment in the display industry, where numerous companies face infringement allegations from PAEs. The settlement underscores the dynamic interplay between patent validity challenges at the PTAB and concurrent or potential district court litigation, influencing the strategies of both patent owners and alleged infringers.

Unified Patents' IPR Against Bishop Display Tech LLC Ends in Pre-Institution Settlement While Patent Faces Ongoing District Court Litigation

Alexandria, VA & Marshall, TX – An Inter Partes Review (IPR) proceeding initiated by Unified Patents against Bishop Display Tech LLC, challenging US Patent 8093830, concluded in a settlement on June 1, 2022, before the Patent Trial and Appeal Board (PTAB) reached a decision on institution. Concurrently, US Patent 8093830 remains active in ongoing patent infringement litigation in the Eastern District of Texas, where Bishop Display Tech LLC, an entity associated with IP Edge LLC, has asserted the patent against multiple defendants.

Parallel PTAB IPR Proceedings

Filing and Outcome:
Unified Patents filed a petition for Inter Partes Review, IPR2022-00503, on January 31, 2022, challenging the patentability of US Patent 8093830, owned by Bishop Display Tech LLC. The PTAB proceeding was ultimately terminated due to a settlement between the parties on June 1, 2022. Notably, no decision on institution was rendered by the PTAB prior to the settlement. This pre-institution settlement means that the IPR did not proceed to a full review of the patent's claims and therefore had no direct preclusive effect on validity arguments in co-pending district court litigation.

Related District Court Litigation

US Patent 8093830, which pertains to thin-film-transistor liquid-crystal displays (TFT-LCDs), has been a frequent subject of infringement assertions by Bishop Display Tech LLC. The company, known for its affiliation with the patent monetization firm IP Edge LLC, has a history of filing multiple lawsuits in the Eastern District of Texas that often conclude in settlements.

Key Filings and Consolidation:
Among the recent litigation involving US Patent 8093830 are two cases filed by Bishop Display Tech LLC against BOE Technology Group Co., Ltd. in the Eastern District of Texas:

• Bishop Display Tech LLC v. BOE Technology Group Co., Ltd. (Case No. 2:25-cv-00309), filed on March 20, 2025.
• Bishop Display Tech LLC v. BOE Technology Group Co., Ltd. (Case No. 2:25-cv-00310), also filed on March 20, 2025.

On August 27, 2025, District Judge Rodney Gilstrap ordered the consolidation of these two cases for all pretrial purposes, designating Case No. 2:25-cv-00310 as the lead case. Following the consolidation, Bishop Display Tech LLC filed a First Amended Complaint for Patent Infringement against BOE Technology Group Co., Ltd. on August 26, 2025.

Pre-Trial Motions and Claim Construction:
On August 27, 2025, Judge Gilstrap issued an order denying BOE Technology Group Co., Ltd.'s motion to dismiss in the consolidated cases. The cases are proceeding towards a claim construction (Markman) hearing, which is currently scheduled for July 30, 2026. A First Amended Docket Control Order was also signed on August 20, 2025, outlining the schedule for the litigation.

Earlier Settlements:
Prior to the current litigation against BOE Technology, Bishop Display Tech LLC asserted US Patent 8093830 and other related patents in lawsuits against Samsung (filed April 2021, dismissed May 2022 due to settlement) and Innolux (filed October 2022, also ending in settlement). These earlier resolutions underscore a pattern of settlement in Bishop Display Tech's patent enforcement campaigns.

The settlement of the IPR prior to an institution decision means that the PTAB did not issue a final written decision on the patentability of US Patent 8093830, leaving the validity challenges to be addressed within the ongoing district court proceedings.

Despite extensive web searches for the specific docket filings of IPR2022-00503, the counsel of record representing Unified Patents in Unified Patents v. Bishop Display Tech LLC could not be definitively identified. Patent Trial and Appeal Board (PTAB) filings, particularly for settled cases, are not always readily available through general public searches.

However, based on Unified Patents' typical representation in other Inter Partes Review (IPR) proceedings, they frequently utilize a combination of in-house counsel and outside law firms. For example, in other IPRs, Unified Patents has been represented by:

• Jason R. Mudd (Lead Counsel)
  • Firm: Erise IP, P.A.
  • Office Location: Overland Park, Kansas, and Greenwood Village, Colorado.
  • Note: Often serves as lead counsel for Unified Patents in IPR proceedings.
• Kelly R. Hughes (Backup Counsel)
  • Firm: Erise IP, P.A. (and also Senior Patent Counsel, Unified Patents)
  • Office Location: Overland Park, Kansas, and Greenwood Village, Colorado.
  • Note: Appears as both outside counsel (Erise IP) and in-house counsel for Unified Patents in various IPRs, demonstrating expertise in patent litigation.
• Eric A. Buresh (Backup Counsel)
  • Firm: Erise IP, P.A.
  • Office Location: Overland Park, Kansas.
  • Note: Has served as backup counsel for Unified Patents in IPR proceedings.
• Roshan Mansinghani (In-house Counsel)
  • Role: Head of Operations, Unified Patents (previously Senior Patent Counsel/Director of Litigation).
  • Firm: Unified Patents, LLC
  • Office Location: Dallas, Texas, and Washington, D.C.
  • Note: Frequently listed as in-house counsel for Unified Patents in IPR petitions and other filings.
• Jordan M. Rossen (In-house Counsel)
  • Role: Senior Patent Counsel, Unified Patents.
  • Firm: Unified Patents, LLC
  • Office Location: Washington, D.C.
  • Note: Regularly appears as in-house counsel for Unified Patents in PTAB matters.

Other Unified Patents in-house counsel who regularly appear in PTAB matters include Jonathan Stroud (COO & CLO) and Michelle Aspen (Senior Patent Counsel). Outside counsel from firms like Haynes and Boone, LLP (e.g., Adam Lloyd Erickson) have also represented Unified Patents in IPRs.

Without specific access to the IPR2022-00503 docket, it is not possible to confirm which of these attorneys or other counsel were precisely on record for this particular settled proceeding.

The following counsel of record represented Bishop Display Tech LLC, the defendant in IPR2022-00503. While direct docket entries specifically naming counsel for IPR2022-00503 were not publicly available through web search, the attorneys listed below from Nelson Bumgardner Conroy P.C. represented Bishop Display Tech LLC in the closely related IPR2022-00508, which also involved a challenge to a patent owned by Bishop Display Tech LLC and concluded with a settlement, suggesting continuity of counsel for the patent owner in similar proceedings.

• Patrick J. Conroy (Principal)

  • Firm: Nelson Bumgardner Conroy P.C. (Dallas, Texas; Fort Worth, Texas; Burr Ridge, Illinois)
  • Note: Mr. Conroy's practice is concentrated on patent infringement, trade secret, technology-based claims, and complex commercial litigation, with extensive trial experience as lead counsel in federal and state courts and before the International Trade Commission. He has been recognized as a "Super Lawyer" in Intellectual Property Litigation.

• Justin B. Kimble (Principal)

  • Firm: Nelson Bumgardner Conroy P.C. (Dallas, Texas; Fort Worth, Texas; Burr Ridge, Illinois)
  • Note: Mr. Kimble is a registered patent attorney focusing on patent infringement litigation and patent licensing, having served as lead counsel for petitioners and patent owners in over 100 inter partes review (IPR) proceedings before the PTAB. His experience spans a wide range of technologies, including liquid-crystal displays.

• Bill Kennedy (Principal)

  • Firm: Nelson Bumgardner Conroy P.C. (Fort Worth, Texas; Dallas, Texas; Burr Ridge, Illinois)
  • Note: Mr. Kennedy's practice focuses on patent infringement litigation in the International Trade Commission and District Courts, handling complex issues of technology and law, and he has experience cross-examining expert and fact witnesses.

• John T. Murphy (Partner)

  • Firm: Nelson Bumgardner Conroy P.C. (Fort Worth, Texas; Dallas, Texas; Burr Ridge, Illinois)
  • Note: Mr. Murphy's practice includes all aspects of intellectual property law, with an emphasis on patent litigation, licensing, and prosecution across diverse technologies such as software, telecommunications, and electronics, and he has experience resolving IP disputes through all phases of litigation, including inter partes reviews. He previously worked as a software developer at Cisco Systems.