Patent litigation attorney
Sabrina C. O'Farrell
1 tracked appearance — 1 plaintiff · 0 defendant.
Specialty & background
Sabrina C. O'Farrell is a patent litigation attorney with Knobbe Martens, where her practice primarily involves representing clients in intellectual property disputes. Her known experience includes representing patent owners in contentious matters.
O'Farrell's litigation experience encompasses the technology area of medical and cosmetic devices, particularly those related to skin treatment. This is exemplified by her appearance as plaintiff's counsel for HydraFacial LLC in the case HydraFacial LLC v. Sinclair Pharma Limited et al..
She also possesses experience in post-grant proceedings before the Patent Trial and Appeal Board (PTAB). Notably, O'Farrell represented HydraFacial LLC as the patent owner in IPR2025-00145, filed by Sinclair Pharma Ltd. The Director of the USPTO de-instituted this IPR following validity findings in a parallel International Trade Commission (ITC) investigation, highlighting her involvement in the strategic interplay between different adjudicative forums for patent disputes.
Information regarding Sabrina C. O'Farrell's specific educational background, bar admissions beyond her practice, or other notable trial results and publications could not be reliably sourced from publicly available information.