Intellectual Property: Patent - New York
Band 5
What the Team is Known For
O'Reilly IP is highlighted for its expertise in life-sciences sector patent litigation, including Hatch-Waxman disputes and infringement cases.
Department profile
Intellectual Property: Patent
USA Guide 2026 : New York
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Ranked Individual
About
Provided by O'Reilly IP
O’Reilly IP is an intellectual property boutique representing innovators, life sciences companies, universities, technology businesses, consumer brands, and investors in complex disputes and strategic IP matters. The firm handles patent litigation, Hatch-Waxman matters, inventorship and royalty disputes, trade secret, trademark, copyright and commercial litigation, together with licensing, due diligence and IP counseling. Its experience covers trial, preliminary injunctions, summary judgment, appeals, discovery, settlement and pre-suit strategy. Recent work includes a $278 million judgment in a high-stakes insulin licensing dispute and summary judgment of patent invalidity for improper inventorship. The firm has particular strength in life sciences and technology matters, drawing on lawyers with scientific, medical, regulatory and patent-law experience.
Industries (2)
- Life Sciences
- Technology
Chambers Review
Provided by Chambers
Work Highlights
Provided by Chambers
O'Reilly IP represented Innoviva in a branded Hatch-Waxman dispute.
Strengths
Provided by Chambers
The team offers proactive strategic vision, deep scientific integration and expertise in emerging areas.
Intellectual Property: Patent respondentUSAO'Reilly IP's ability to anticipate legal developments, translate complex scientific innovations into robust patent application and execute flawlessly on mission-critical matters. It consistently delivers exceptional outcomes on the most challenging matters.
Intellectual Property: Patent respondentUSAO'Reilly demonstrates a holistic understanding of business matters beyond the purely legal.
Intellectual Property: Patent respondentUSAThe firm maximizes the value of our assets through thoughtful and creative approaches.
Intellectual Property: Patent respondentUSAO'Reilly attorneys take a very pragmatic approach in the way that they counsel.
Intellectual Property: Patent respondentUSA
Notable Practitioners
Provided by Chambers
Band 5 
Band 5 Brian O'Reilly
Brian O'Reilly is an experienced IP attorney with broad expertise covering a range of disputes. He frequently advises clients on complex patent infringement litigation, particularly relating to high technology and life sciences.
Brian offers creative, out-the-box thinking.
Intellectual Property: Patent respondentUSABrian takes the time to understand the client's business and tailors his advice accordingly.
Intellectual Property: Patent respondentUSABrian exemplifies exceptional client service through his role as both a strategic thought partner and trusted advisor.
Intellectual Property: Patent respondentUSABrian is tenacious and a really smart lawyer.
Intellectual Property: Patent respondentUSABrian is a great lawyer with significant experience, an excellent work ethic, strong business judgement and solid strategic thinking.
Intellectual Property: Patent respondentUSA
Ranked Individuals at O'Reilly IP (1)
New York
Brian O'Reilly
Intellectual Property: Patent
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Members
Provided by O'Reilly IP
Leslie Kushner
Head of Department
What success is built on
Chambers is the leading data and intelligence partner for the legal sector.