Douglas M. Kubehl

I'll research this attorney's professional background before drafting the summary.

Now let me verify the specific tracked cases and PTAB activity.

Let me check the VirnetX matter and his broader IPR record.

Douglas M. Kubehl — Baker Botts LLP (Dallas)

Specialty / focus. Kubehl's practice centers on patent infringement litigation and licensing in electrical and computer technology: telecommunications and wireless (LTE network equipment, network transformation, standard-essential patents), semiconductors and integrated circuits, electronics, optics, software, messaging, database encryption, and cloud computing. More recent dockets show him extending into energy and emerging-tech subject matter — most notably N-type TOPCon solar cell technology in the JinkoSolar/SEG matters and wearable biometric sensors in the Omni MedSci litigation. His undergraduate degree is in electrical and computer engineering, which aligns with that technical mix. He also handles trade secret and technology-licensing work. Firm-supplied profiles state he has litigated roughly 200 patent cases over a career of about 30 years, including multi-patent defense campaigns (eight or more asserted patents) across U.S. courts and in Europe and Japan.

Side preference — both sides, weighted toward defense. The tracked appearance data is 2 plaintiff-side and 1 defendant-side, so it does not by itself show a defense tilt. However, the published practice descriptions emphasize defendant/operating-company work: defenses against "ultra-complex patent aggregator cases," LTE-network defenses for equipment vendors and carriers, and summary judgments of non-infringement and invalidity. His own firm biography also claims jury verdicts for patent holders, and the tracked VirnetX matter is a patent-owner representation — so the accurate characterization is a genuinely two-sided practice, with an established defense practice and selective patent-holder/plaintiff work, rather than a dedicated NPE-side or NPE-defense niche.

Firm context and credentials. Kubehl has been at Baker Botts throughout the tracked period and is the firm's firmwide co-chair of IP litigation. He is identified as a Baker Botts partner as far back as a 2012 SMU Science and Technology Law Review panel, but I could not verify any prior-firm history from reliable sources — treat earlier employment as unknown. He is admitted in Texas (1996), is a registered practitioner before the USPTO (Reg. No. 41,915), and is admitted to the Fifth and Federal Circuits and several Texas district courts. Education: J.D., University of Minnesota Law School (1996, magna cum laude, Order of the Coif); B.S., electrical and computer engineering, University of Wisconsin (1993, with distinction).

Notable matters and PTAB work. Omni MedSci, Inc. v. Samsung Electronics Co. Ltd. (E.D. Tex.) is his tracked lead-counsel engagement; he represents Samsung against wearable-device biosensor patents, and the dispute has generated a substantial parallel PTAB docket (IPR2025-01249 through -01254 and PGR2025-00064, with institution granted in at least one proceeding). In SEG Manufacturing Inc. et al. v. Zhejiang Jinko Solar Co. Ltd. et al. he appears for the SEG entities in the TOPCon solar-cell dispute with JinkoSolar, which has produced a corresponding IPR (IPR2026-00230) challenging Jinko's U.S. Patent No. 11,824,136. His tracked VirnetX Inc. v. Apple Inc. appearance is on the patent-owner side; I could not independently verify Baker Botts's specific role in that matter from public sources, so that item rests on the docket data provided. On the defense side, firm materials and IAM Patent 1000 credit him with a favorable outcome for AT&T in Finesse Wireless (cellular technology) and with numerous summary judgments of non-infringement in LTE cases. He is a regular presence in post-grant practice — for example, he is named backup counsel on the IPR2026-00152 petition (Ebury Partners v. Intercurrency Software) — though the depth of his personal PTAB appearance record beyond these filings is not something I could quantify from public sources.

Note: several statistics above (case counts, aggregate verdict/SJ tallies) come from Baker Botts and directory profiles supplied by the firm and should be treated as self-reported rather than independently verified.