Patrick Colsher focuses on intellectual property and other complex commercial litigation and counseling. A registered patent attorney with a technical background in electrical and biomedical engineering, Patrick is frequently called upon to guide clients through their toughest IP issues.

Patrick has significant trial experience, having successfully litigated numerous patent, trade secret, and other IP cases in federal courts throughout the country and Section 337 investigations before the International Trade Commission (ITC). He has also developed a successful track record in post-grant and inter partes review trials before the U.S. Patent & Trademark Office, having handled nearly 100 trials.

For example, in 2025, Patrick achieved a perfect record for both patent owners and petitioners in over 20 proceedings. When representing patent owners, every petition has been denied, but while representing petitioners, every petition has been instituted, and those that have reached final written decision have resulted in every challenged claim being found unpatentable.

Representative Matters

• Represented Nichia, the world’s largest LED manufacturer, in a five-patent district court case and as lead counsel in inter partes review trials stemming therefrom. Achieved pre-institution stay of district court case. IPRs led to final written decisions finding unpatentable all claims asserted in district court.

• Represented LED manufacturers Nichia and OSRAM at the ITC and as lead counsel in multiple inter partes reviews over LED-package technology that threatened to exclude from the United States a substantial portion of the companies’ products. All asserted claims found not infringed, not supportive of a technical domestic industry, and/or invalid before the ITC. The IPRs further led to all asserted claims of one patent being found unpatentable and forced the patent owner to take claim-construction positions that led to non-infringement findings at the ITC.

• Lead counsel to Nichia in inter partes review trials involving LED packaging patents asserted against customers. As a result of the IPRs, achieved favorable resolution resulting in complete patent coverage for Nichia and its customers.

• Lead counsel to Honda in multiple district court patent cases. Successfully convinced the plaintiffs to voluntarily dismiss with prejudice their cases after demonstrating fundamental problems with the cases. In one case, also achieved a complete release and covenant not to sue for all patents owned by plaintiff and its affiliates, without any monetary payment by Honda.

• Lead counsel to numerous patent owners in inter partes review proceedings, resulting in complete victories for the patent owners. In one instance, represented Patent Owner Valtrus Innovations in a series of seven inter partes reviews brought by SAP, defending portfolio of seminal data network and storage patents that originated from R&D at Hewlett-Packard Enterprise. The Patent Office denied institution for six IPRs, and SAP voluntarily withdrew the seventh prior to institution. In another instance, represented Patent Owner Valtrus Innovations in three inter partes reviews brought by Vertiv, defending portfolio of HPE-originated data center technology patents. The Patent Office denied institution of all three IPRs.

• Represented Western Digital in a seven-patent district court case and in corresponding inter partes review trials over patented semiconductor technology. Successfully resolved case after the Board instituted the IPRs and the district court issued a favorable claim construction ruling including dispositive non-infringement and indefiniteness determinations.

• Represented secure mobile payment company CardWare Inc. in connection with district court and inter partes review trials. In one representation, secured a favorable settlement after defeating institution of several inter partes reviews filed by Samsung and obtaining a favorable Markman decision in district court. In another, defeated institution of all eight inter partes reviews filed by Apple.

• Lead counsel to Robert Bosch as patent owner in multiple inter partes review trials over Bosch’s seminal beam wiper blade patents.

• Represented Bath & Body Works in district court and at the Federal Circuit over patented antimicrobial dermal delivery technology. Obtained jury verdict of invalidity due to an on-sale bar. Affirmed on appeal by Federal Circuit.

• Represented Spotify, Netflix, and Hulu in district court and inter partes review trial over patented streaming media technology. Federal Circuit ultimately held invalid all asserted patent claims challenged at the Patent Office.

• Represented pricing-software company Price f(x) in competitor suits in multiple venues brought by Vendavo, alleging patent infringement, copyright infringement, trade secret misappropriation, and state law unfair business claims. After bringing trade secret counterclaim, defeating preliminary injunction on all key issues, and achieving successful institution of cover business method review challenges at the Patent Office of all five asserted patents, the parties agreed to dismiss all proceedings with prejudice, whereby Vendavo admitted that Price f(x) owns all IP in its products without any infringement of Vendavo’s patents, copyrights, or trade secrets.

• Represented Bright Pattern in a five-patent competitor case involving call center technology. Successfully achieved dismissal of the case following the Court’s indication that it would grant motion to dismiss on all five patents on Section 101 grounds.

• Represented Victoria’s Secret in district court over patented dynamically-generated applet technology. Obtained summary judgment of non-infringement. Affirmed on appeal by Federal Circuit.

• Represented DENSO in district court over patented semiconductor technology. After demonstrating non-infringement, the plaintiff voluntarily dismissed its case.

• Seconded attorney for two years at a major automotive company, working with in-house team to manage patent litigations and intellectual property transactions.

• Pro bono representation of clients seeking asylum and special immigration juvenile status.