Unified Patents v. Samsung Display Co., Ltd.

Unified Patents filed an Inter Partes Review (IPR) petition, IPR2025-01478, against Samsung Display Co., Ltd. at the Patent Trial and Appeal Board (PTAB) on March 13, 2025, challenging the validity of US Patent 11574990. Unified Patents is a member-based organization dedicated to deterring "patent trolls" (Non-Practicing Entities or NPEs) and improving overall patent quality by initiating validity challenges like IPRs against patents they deem to be of low quality or asserted improperly. Samsung Display Co., Ltd., on the other hand, is a major operating company and a global leader in the manufacturing of advanced display technologies, particularly Organic Light Emitting Diode (OLED) and Quantum Dot-OLED (QD-OLED) panels used in a wide array of electronic devices such as smartphones, televisions, and laptops.

The patent at issue, US Patent 11574990, is titled "Organic light emitting diode display with curved channel region." It describes an OLED display where a driving semiconductor layer of a thin-film transistor is designed with a curved, bent configuration, lying substantially parallel to the substrate, and may include a storage capacitor. The invention aims to enhance the driving range of the thin film transistor to facilitate larger displays. While no specific "accused product" is directly identified in an IPR petition as it would be in a district court infringement case, the challenge targets the underlying patentability of the claims within this patent, which could potentially impact any future or ongoing assertions of this patent by Samsung Display.

The case is currently settled before institution, meaning the parties reached an agreement to resolve the IPR challenge before the PTAB decided whether to formally initiate a trial. This proceeding takes place at the PTAB, an administrative tribunal within the U.S. Patent and Trademark Office, which serves as a venue for expeditiously and cost-effectively challenging the validity of issued patents outside of traditional district court litigation. This case is notable as it involves Unified Patents, known for its strategic use of IPRs to challenge patents, particularly those that may be susceptible to NPE assertions, even when owned by a large operating company like Samsung Display. The dispute also highlights the intense and often litigious landscape surrounding OLED display technology, a critical and highly valuable sector for Samsung Display, where patent strength and validity are paramount.

Unified Patents filed an Inter Partes Review (IPR) petition, IPR2025-01478, against Samsung Display Co., Ltd. challenging US Patent 11574990 on March 13, 2025. This case involves a challenge to the validity of the patent at the Patent Trial and Appeal Board (PTAB).

Parallel PTAB IPR/PGR proceedings and their effect on the litigation:

• IPR Filing (2025-03-13): Unified Patents filed IPR2025-01478 against Samsung Display Co., Ltd. targeting US Patent 11574990.
• Settlement Before Institution: The parties reached a settlement to resolve the IPR challenge before the PTAB made a decision on whether to formally institute a trial. The current status is "Settled After Institution".
• The effect of this settlement is that the validity of US Patent 11574990 was not fully litigated before the PTAB. The settlement terms are not publicly available, but it effectively concludes the IPR challenge.

I'll research counsel of record for the petitioner (Unified Patents) in IPR2025-01478.

Counsel of record — Petitioner side (the "plaintiff" in this IPR)

⚠️ Threshold flag: the party identification in the case metadata conflicts with the public PTAB record

The case metadata lists Unified Patents as the plaintiff/petitioner in IPR2025-01478. Based on the public PTAB filings I was able to retrieve, that appears to be inconsistent with the docket:

• Samsung Display's Patent Owner Preliminary Response in the companion proceeding (IPR2025-01498, U.S. Patent 10,720,483) states that "BOE has filed petitions seeking IPR of all 12 Samsung Display patents. See Nos. IPR2025-01476, -01477, -01478, -01479, -01480, -01481, -01494, -01499, -0154…" and identifies the 12 asserted patents as including U.S. Patent 11,574,990 — the patent named in this case's metadata.
  — Source: Samsung Display POPR, IPR2025-01498, entered Nov. 10, 2025 (https://ptacts.uspto.gov/ptacts/public-informations/petitions/1558445/download-documents?artifactId=lyQLyFJrqUkiWdE7-TvLUCu5BrOkQh8DyN7FvGE4XkqPOlkP9SZwBHI)
• The same brief recites that Samsung Display asserted the '990 patent against BOE in E.D. Tex. on April 17, 2025 (along with U.S. 10,013,088; 10,439,015; 11,574,991).
• An independent case-law database entry confirms the same petition family is captioned "[BOE Technology Group Co., Ltd.](/litigations/by-plaintiff/BOE%20Technology%20Group%20Co.%2C%20Ltd.) et al. v. Samsung Display Co., Ltd." (e.g., IPR2025-01480 on U.S. 10,439,015): https://cases.arcticinvent.com/us/patent/us/petition-as-filed/ipr2025-01480/
• The BOE petition exhibit list in IPR2025-01481 cites the E.D. Tex. complaint, Samsung Display Co. v. BOE Technology Group Co., No. 2:25-cv-00412-JRG, as Ex. 1028: https://ptacts.uspto.gov/ptacts/public-informations/petitions/1558428/download-documents?artifactId=8q4fqflkHRe_MJjCbo9Ndf2flfuZRPQP0XhNGFGJtyI5A0tZDOcW7MU

Implication: on the public record, the petitioner in the -01476 through -01481/-01494/-01499/-0154x family — which includes IPR2025-01478 on the '990 patent — is BOE Technology Group Co., Ltd. (and related BOE entities), not Unified Patents. Unified Patents is a frequent IPR filer, but I found no public trace of a Unified Patents petition on the '990 patent. The metadata's filing date (2025-03-13) also sits awkwardly against the BOE petition wave, which follows Samsung Display's April 2025 complaints.

Caveat: I could not open the IPR2025-01478 petition PDF itself (Paper 1) to read the caption and signature block directly. If the metadata is authoritative as to party identity, then the "plaintiff" to report is Unified Patents and the analysis below should be read as "petitioner-side counsel, whichever entity is correctly named." I would resolve this by pulling Paper 1 and the § 42.8 mandatory notices directly from PTACTS before relying on either version.

What I can and cannot confirm about counsel

Petitioner-side counsel (BOE Technology Group, per the public record — or Unified Patents, per the metadata): not confirmed. My searches did not surface a signature block, § 42.8(b)(3) lead/backup counsel designation, or § 42.10(b) power of attorney for IPR2025-01478. The PTACTS snippets I retrieved show exhibit lists and POPR text but not the attorney names. I am therefore not naming any attorney for the petitioner; doing so would be fabrication.

Where the names will appear, if you need them verified:

1. Paper 1 (Petition) — signature block immediately above the certificate of service, listing lead and backup counsel with registration numbers.
2. Petitioner's Mandatory Notices (37 C.F.R. § 42.8) — lead counsel, backup counsel, service addresses.
3. Power of Attorney under § 42.10(b), where an in-house petitioner names outside counsel.
4. PTACTS proceeding page for IPR2025-01478 (ptacts.uspto.gov, proceeding/petition ID in the same range as the 1558xxx IDs above), or the PTAB "Patent Trial and Appeal Board End-to-End" system, filtered on the proceeding number.

Patent-owner-side counsel (Samsung Display): also not confirmed here for IPR2025-01478 specifically. Samsung Display's POPRs in the sibling proceedings (e.g., IPR2025-01498 at the link above, and IPR2025-01496/-0154x on the '279 patent) are signed by its PTAB counsel, but the snippets I retrieved did not include the signature block. For completeness, Samsung Display's district court counsel in Samsung Display Co. v. BOE Technology Group Co., No. 2:25-cv-00412-JRG (E.D. Tex.) would appear on the complaint and would be a separate (though often overlapping) team — I did not verify those names either.

Status discrepancy worth noting

The case summary says the proceeding "settled" / "Settled After Institution" (the existing sections also contradict each other: "settled before institution" vs. "Settled After Institution"). The public record as of the filings I retrieved shows these BOE-v.-Samsung Display petitions being actively contested — Samsung Display filing full POPRs seeking discretionary denial in November 2025 across the family. That is not consistent with a pre-institution settlement. I'd treat the "Settled" status as unverified for IPR2025-01478 and check the PTACTS termination paper (any judgment under § 42.72/42.73 or joint request to terminate) before repeating it.

Bottom line

• Counsel of record for the plaintiff/petitioner cannot be responsibly identified from the sources I could retrieve. No signature block for IPR2025-01478 was locatable; the specific attorneys' names are not in anything I found.
• The petitioner's identity itself is in dispute between the case metadata (Unified Patents) and the public docket (BOE Technology Group). I would not publish a counsel list until that is resolved against Paper 1.
• Recommended next step, in order: (1) pull Paper 1 and the § 42.8 mandatory notices from PTACTS for IPR2025-01478; (2) confirm the petitioner caption; (3) then report lead/backup counsel with registration numbers, firm, and office.

The provided case information states that Unified Patents filed an IPR petition against Samsung Display Co., Ltd. for US patent 11574990, and the case settled before institution. In IPR proceedings, the party filing the petition (Unified Patents) is the Petitioner, and the patent owner (Samsung Display Co., Ltd.) is the Patent Owner (also referred to as Respondent in some contexts, especially when responding to the petition). Therefore, to identify counsel for the defendant(s), we need to look for counsel representing Samsung Display Co., Ltd. as the Patent Owner in IPR2025-01478.

However, a direct search for "IPR2025-01478 Samsung Display Co., Ltd. counsel" or similar combinations did not yield specific counsel of record for Samsung Display Co., Ltd. in this particular IPR. The search results provided information about counsel for Unified Patents in other IPRs and counsel for Samsung Electronics Co., Ltd. and [Samsung Electronics America, Inc.](/litigations/by-plaintiff/Samsung%20Electronics%20America%2C%20Inc.) as petitioners in other IPRs where they challenged patents. Some results also listed counsel for Samsung Display Co. Ltd. in other IPRs and district court cases, but not specifically for IPR2025-01478 as the patent owner. Given the status of "Settled Before Institution," it's possible that detailed appearances by outside counsel for Samsung Display Co., Ltd. were not yet fully established or publicly documented in a readily searchable format before the settlement.

Therefore, at this time, the counsel of record representing Samsung Display Co., Ltd. in IPR2025-01478 cannot be definitively identified from the available public information.