Patent litigation attorney

Robert N. Kang

9 tracked appearances — 2 plaintiff · 7 defendant.

Specialty & background

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Robert N. Kang — Patent Litigation Practice Summary

Focus areas. Kang is a San Francisco–based IP trial lawyer whose practice centers on high-technology patent disputes. His technical background is electrical engineering (BSEE, University of Texas at Austin; former USPTO patent examiner), and his docket skews toward wireless and networking technologies — Wi-Fi standards in particular. The tracked cases reflect this: he defends TP-Link in the Atlas Global Technologies Wi-Fi 6/802.11ax standard-essential-patent litigation and Cisco in the Velocity Communication Technologies Wi-Fi 6 campaign, and he represents AT&T in Lemko Corporation's network-functions-virtualization/mobile-edge-computing suit. Firm-published descriptions add semiconductors, cloud computing, computer hardware, software, cybersecurity and electronic payment systems, medical devices, and trade secret disputes.

Side preference. He is predominantly a defense-side litigator: 7 of 9 tracked appearances are for defendants, with only 2 on the plaintiff side. He primarily defends operating companies — Cisco, PayPal, AT&T, TP-Link, Microsoft (as IPR petitioner), Google, RF Micro Devices, Energy Labs, and LivePerson — against NPE/PAE and competitor suits, while also maintaining a smaller patentee-side practice.

Firm context. Every tracked appearance lists Winston & Strawn, where he was elevated to partner (announced December 1, 2023) and practiced in the firm's San Francisco IP group. Public reporting (Gish PLLC's own announcement) indicates he has since joined Gish PLLC as a partner in its San Francisco office; the tracked case data reflects his Winston & Strawn tenure only. Registration records list him as a registered patent practitioner (USPTO Reg. #59,609) and a member of the State Bar of California (admitted December 2010). J.D., cum laude, Northwestern Pritzker School of Law.

Notable matters and PTAB/IPR. Firm-reported results include a complete defense jury verdict for Energy Labs in the Northern District of California (no infringement of six patents; most claims invalid), a $400 million settlement for Cisco in its ITC dispute with Arista Networks, four consecutive NPE victories for PayPal (including persuading Judge Albright to invalidate four Fintiv patents on indefiniteness and invalidating the fifth via IPR), a Google/Rockstar Consortium settlement, and defense settlements for RF Micro Devices and LivePerson. More recent matters include the Atlas Global v. TP-Link Wi-Fi 6 case (a reported $37.5M verdict against TP-Link, affirmed by the Federal Circuit in June 2026, with parallel EPO/UPC proceedings and a reported settlement), the 2025 Lemko v. AT&T and Velocity v. Cisco suits, and a two-week Alphatec Spine jury trial.

Kang appears regularly in AIA proceedings as both petitioner's and patent owner's counsel, including as lead counsel on Microsoft's IPR2023-00531 petition and on the Fintiv/PayPal IPR. Firm and industry sources note him as concentrating on PTAB, ITC, and district court work. IAM Patent 1000 recognized him in 2023 and 2024.

Caveats: several outcomes above (PayPal, Cisco/Arista, Energy Labs, Google) come from Kang's own firm biography, which notes some experience may predate his current firm, and the $400M Cisco/Arista settlement figure is firm-reported rather than independently verified here. The Gish PLLC move is sourced to that firm's announcement; no date was confirmed.

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Cases (9)