Unified Patents v. Belden Inc.

Case Overview and Background: Unified Patents v. Belden Inc. (IPR2023-01056)

This case involves an Inter Partes Review (IPR) proceeding, IPR2023-01056, filed by Unified Patents against U.S. Patent 9,991,030, owned by Belden Inc. The matter is currently before the Patent Trial and Appeal Board (PTAB) of the U.S. Patent and Trademark Office (USPTO), where a Final Written Decision has been issued.

Unified Patents is a member-based organization that aims to deter "patent trolls" or Non-Practicing Entities (NPEs) from asserting low-quality patents by proactively challenging their validity in specific technology sectors. Unified Patents achieves this by filing IPRs, conducting prior art searches, and monitoring NPE activity to reduce frivolous patent litigation. Belden Inc. is an American multinational publicly traded company that designs, manufactures, and distributes end-to-end networking, security, and connectivity products, serving industrial automation, smart buildings, and broadband markets.

The patent at issue, U.S. Patent 9,991,030, is titled "MODULAR FIBER OPTIC CASSETTE SYSTEM." It generally describes systems and methods for optical fiber distribution frames, particularly focusing on modular fiber optic cassette systems. This patent is part of Belden's intellectual property portfolio related to structured cabling technology, which is critical infrastructure for enterprise networks, data centers, and telecommunications systems.

While an IPR does not involve an "accused product or service" in the same way a district court infringement case does, the validity of U.S. Patent 9,991,030 has direct implications for Belden. Notably, this patent, along with others, was previously asserted by Belden against CommScope Holding Co, Inc. in a district court infringement suit concerning Category 6A cable technology. That district court case in the District of Delaware (Belden Technologies v. CommScope) was stayed pending the outcome of IPR proceedings at the USPTO, highlighting the strategic importance of this IPR for Belden's enforcement efforts.

The procedural posture of this case, an IPR before the PTAB, is significant. The PTAB provides an administrative forum for challenging the validity of issued patents, offering a potentially faster and less expensive alternative to district court litigation for determining patentability. The PTAB's Final Written Decision in IPR2023-01056 will directly impact Belden's ability to assert the '030 patent in any ongoing or future infringement actions, such as the litigation against CommScope. The involvement of Unified Patents, a prominent patent challenger, in contesting a patent held by an operating company like Belden makes this case notable within the broader context of patent quality and enforcement strategies.

Key Legal Developments and Outcome for IPR2023-01056

This case involves an Inter Partes Review (IPR) proceeding, IPR2023-01056, filed by Unified Patents challenging U.S. Patent 9,991,030, owned by Belden Inc. While the IPR has reached a Final Written Decision, the specific details of that decision, including its date and outcome (i.e., which claims were found unpatentable or patentable), were not explicitly available in the public search results. However, related district court litigation involving the same patent provides additional context.

Chronological Legal Developments:

• 2022: Belden Inc. initiated a patent infringement lawsuit against CommScope, Inc., CommScope, Inc. of North Carolina, and CommScope Technologies LLC in the District of Delaware (Civil Action No. 22-783-RGA). Belden asserted infringement of several patents, including U.S. Patent Nos. 9,991,030 and 10,832,833.
• 2023-06-13: Unified Patents filed the Inter Partes Review petition IPR2023-01056 with the Patent Trial and Appeal Board (PTAB), challenging U.S. Patent 9,991,030.
• 2024-03-04: The District of Delaware case, Belden Inc. v. CommScope, Civil Action No. 22-783-RGA, was administratively closed. This action was taken pending the outcome of inter partes review proceedings at the USPTO. The administrative closure meant the underlying infringement claims remained active and the case could be reopened once the IPRs concluded, rather than a dismissal on the merits.
• 2025-12-15: A claim construction (Markman) hearing was held in the Belden Inc. v. CommScope district court case, addressing terms in U.S. Patent Nos. 9,991,030 and 10,832,833.
• 2026-04: A Memorandum Opinion regarding claim construction was issued by the U.S. District Court for the District of Delaware in the Belden Inc. v. CommScope case. The opinion focused on terms in the '030 and '833 patents, including disputes regarding "non-conductive filler member," "multilayer barrier tape," and "non-conductively shielding."

Parallel PTAB IPR Proceedings (IPR2023-01056):

• Filing: Unified Patents filed IPR2023-01056 on June 13, 2023, challenging U.S. Patent 9,991,030.
• Institution: The PTAB subsequently instituted the IPR, though the specific institution date was not found in the search results.
• Final Written Decision: A Final Written Decision (FWD) has been issued in IPR2023-01056, as stated in the case metadata. However, the exact date of the FWD and its specific outcome regarding the patentability of the challenged claims of U.S. Patent 9,991,030 were not explicitly identified in the available public search results.

Outcome and Present Posture:
The IPR proceeding, IPR2023-01056, has reached a Final Written Decision. Without the specific details of this decision, the direct impact on the patentability of U.S. Patent 9,991,030 cannot be fully ascertained. The related district court litigation, Belden Inc. v. CommScope, Civil Action No. 22-783-RGA, remains administratively closed, pending the resolution of the IPR proceedings. The claim construction phase in the district court has been completed, with an opinion issued in April 2026. Any appeal from the IPR's Final Written Decision would go to the U.S. Court of Appeals for the Federal Circuit.

Unified Patents is represented by its in-house legal team in IPR2023-01056. Jonathan Stroud serves as the Chief Operating Officer (COO) and Chief Legal Officer (CLO) for Unified Patents. He manages the organization's legal and corporate work, focusing on PTAB, district court, and appellate litigation, among other responsibilities. Before joining Unified Patents, Mr. Stroud was a patent attorney at Finnegan, Henderson, Farabow, Garrett and Dunner LLP, where he was involved in early post-grant review work. He also previously examined patents at the U.S. Patent and Trademark Office (USPTO). Mr. Stroud has been identified as counsel of record for Unified Patents in other legal proceedings, including a Supreme Court case.

Unified Patents also employs several Senior Patent Counsel who are involved in drafting, filing, and litigating patent office proceedings, including IPRs. While specific attorneys from Unified Patents' in-house team who actively litigated IPR2023-01056 are not detailed in the general search results, the organization's structure indicates that these proceedings are handled internally by their experienced patent attorneys. Unified Patents is based in Washington, D.C., and offers remote work options for its legal team.

I am unable to definitively identify the counsel of record representing Belden Inc. in IPR2023-01056, along with their specific roles, firms, office locations, and relevant patent litigation experience, using publicly available web search tools.

While various searches were conducted using the IPR number, party names, and patent number, direct access to the official PTAB docket for IPR2023-01056, which would list the appearing attorneys, is not available through this interface. Searches for "IPR2023-01056 Belden Inc. counsel" or "Unified Patents v. Belden Inc. IPR2023-01056 attorneys" did not yield a direct list of legal representation for Belden Inc. in this specific proceeding.

General information regarding other IPRs involving Belden Inc. indicated that:

• In IPR2025-00833, where Belden Inc. was a petitioner, they were represented by Finnegan, Henderson, Farabow, Garrett & Dunner, LLP (with Cory C. Bell and Xirui Zhang listed as counsel) and Barclay Damon, LLP (with Denis J. Sullivan listed as counsel). This, however, pertains to a different IPR where Belden was the petitioner, not the patent owner in IPR2023-01056.
• In an older Federal Circuit appeal, Belden v Berk-Tek, relating to US Patent No. 6,074,503, Matthew Lowrie of Foley & Lardner represented Belden. This case is from 2015 and involves a different patent.

Without direct access to the Patent Trial and Appeal Case Tracking System (P-TACTS), which is the official means for electronic filing and tracking of IPR documents, it is not possible to precisely identify the attorneys who appeared for Belden Inc. as the patent owner in IPR2023-01056 and the details of their representation.