Seong Jun Park

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Professional Summary — Seong Jun Park

Specialty / focus. Park's tracked patent litigation work is concentrated in wireless communications and consumer electronics. All four tracked matters involve Sol IP, LLC, an NPE asserting a portfolio of patents licensed from South Korea's Electronics and Telecommunications Research Institute (ETRI) covering LTE, 5G, MIMO and Wi-Fi/WLAN technologies. His USPTO prosecution record points the same direction: the practitioner registration associated with Fidelis Law Group lists a decade of filings for ETRI, Korean handset maker Pantech, and GoldPeak Innovations — i.e., electrical/telecom and standards-adjacent subject matter rather than pharma or mechanical art. (Caveat: several Korean practitioners share the name "Seong-Joon/Sung-Jun Park," including a former president of the Korean IP Trial and Appeal Board now teaching at KAIST; that individual is a different person and should not be conflated with the U.S. patent attorney, Reg. No. 73534.)

Side preference. Exclusively plaintiff/patent-owner side. The tracked record shows 4 plaintiff-side appearances and zero defendant-side appearances, with roles ranging from full counsel of record to team counsel and of counsel. This is patent-monetization and assertion work — including standard-essential-patent (SEP) claims — rather than a defense practice for operating companies. Any claim that he handles defense-side or IPR work is not supported by the available record.

Firm context. Currently at Fidelis Law Group, PLLC (McLean/Tysons Corner, VA), the firm named in two tracked matters and in his USPTO registration. He appeared as team counsel at Susman Godfrey in the earlier Sol IP carrier litigation, and public practitioner data lists a prior affiliation with Yoon & Lee International Patent & Law Firm, a Korean IP firm — though that entry is aggregated third-party data and should be verified before being cited. His Korean-language capacity is relevant to the ETRI-licensed portfolio at the center of his practice.

Notable matters and results. The most prominent tracked case is Sol IP, LLC v. Qualcomm Inc., No. 6:21-cv-00270 (W.D. Tex., Judge Albright), in which Sol IP asserted 28 ETRI wireless patents against Qualcomm; the case was successfully settled. In the earlier campaign, Sol IP v. Sprint Communications et al. (E.D. Tex.), Ericsson and Nokia intervened as manufacturers; Ericsson was dismissed with prejudice in February 2020 following settlement, and the remaining defendants were dismissed in May 2020. Sol IP v. Ford Motor Co., No. 2:22-cv-00097 (E.D. Tex.) — the matter in which he filed a notice of appearance on April 19, 2022 — was dismissed without prejudice in September 2022, a result that does not reflect a merits outcome. Note also that Unified Patents ran prior-art (PATROLL) contests targeting Sol IP's ETRI MIMO patents, indicating validity pressure on that portfolio.

PTAB / IPR. No IPR, PGR or other PTAB appearances by this attorney were identified in the available sources; the record is district-court litigation plus prosecution. Treat any statement of PTAB experience as unverified.

Bar / education. Registered to practice before the USPTO as a patent attorney, Reg. No. 73534 (registered March 17, 2015). State bar admission and law school were not reliably sourced and are therefore omitted.