About Us

O'Connor & Company is different.

We understand that all IP decisions are fundamentally business decisions, and that the best service will result from integrating legal, technical, and business strategies for each client.

O’Connor & Company serves clients in the chemicals, materials, energy, and biotechnology industries, to create and protect valuable intellectual property in support of business goals. We offer high-level intellectual-property strategy consulting as well as patent drafting and prosecution, patent engineering, client education, and expert-witness services.

The partners of our firm are licensed (admitted to the Bar) with the United States Patent and Trademark Office (USPTO) for patent cases. We are also licensed to practice before the U.S. Patent Trial and Appeal Board (PTAB) for patent trials and appeals. We have practiced patent law for clients in over 40 states of the U.S. over 15 years.

Executive Bios

Ryan P. O'Connor

Dr. Ryan P. O’Connor is a Founding Partner (2006) and President of O’Connor & Company. His practice includes patent preparation and prosecution, as well as intellectual-property strategy consulting, for chemicals, materials, energy, biotechnology, and pharmaceuticals.


Adrienne E. O'Connor

Dr. Adrienne E. O’Connor is a Founding Partner (2006) and the Managing Partner of O’Connor & Company. Her practice includes intellectual-property strategy consulting and patent case management in the chemicals and materials industries.



“I can endorse you and recommend you unreservedly to anybody. Thanks for all your great work.”

– CEO of a biorefinery client

“Thank you very much for your dedication to the client!! It is greatly appreciated!!”

– Co-counsel on a patent case

“It was a fun project and you made it seamless and easy. Thanks for your support.”

– Investment analyst for patent portfolio drafted by O’Connor & Company

“Thank you for everything! I now know much more than I did going in.”

– Independent inventor, communication systems

“Thank you, this is hard earned by all of us and one to remember.”

– CEO of cleantech client after successful patent appeal

“Thank you for the excellent work you did and getting everything submitted on time. I really appreciate it and look forward to working together over the next 20+ years.”

– Independent inventor, material science

“This is excellent, and a milestone day for this technology, and our company. We appreciate your top-notch service and expertise through all of this. From all of us, thanks for the efforts on this. Really good stuff.”

– CEO, natural gas technology

“The IP is great and created huge value!”

– Investor conducting due diligence on patents drafted by O’Connor & Company

“You’re the very best!”

– CTO of a biorefinery client

“Life has never been easy but your support has been a big blessing. Thanks a lot.”

– Independent inventor, gasification technology

“Congress shall have power to promote the progress of science and useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discoveries.”

– U.S. Constitution, Article 1, Section 8