Overview
For more than 25 years, John has counseled clients on patent law and corporate transactions relating to intellectual property law. As a member of the firm’s Intellectual Property Service Group, John provides extensive client counseling in relation to the pursuit and utilization of intellectual property rights, and advises clients on corporate transactions involving the purchase or sale of intellectual property assets.
John prepares and prosecutes numerous domestic and foreign patent applications in complicated technologies, resulting in hundreds of issued patents, in mechanical, electrical and software-related technologies on behalf of companies of all sizes, from Fortune 500 to small entrepreneurs. John manages patent portfolios for a variety of companies and provides strategic counsel in regard to the filing, procurement, and maintenance of patent rights, both domestically and abroad.
John also prepares patent opinions and provides guidance regarding the scope of intellectual property rights, and counsels clients in the area of post-grant proceedings such as inter partes review proceedings. In his career he has rendered numerous patent-related opinions, including patentability, non-infringement, and invalidity opinions, including opinions in anticipation of, or in the context of patent litigation.
In addition, John prepares and negotiates agreements relating to intellectual property, including license agreements, assignment agreements, purchase agreements, joint development and collaboration agreements, and confidentiality agreements. Further, John counsels clients regarding trademark rights, prepares trademark applications, and conducts related review of issues pertaining to securing trademark rights.
John has technical knowledge in the areas of electrical and mechanical engineering, including computer hardware, software and the Internet. His experience includes work in the areas of mobile devices, wireless communications, electromagnetics, optics, semiconductors, control systems, including industrial controllers and motor controllers, and a variety of complex systems, including imaging systems, heating and cooling systems, automotive systems, and agricultural systems, as well as engines, motors, and generators. Additionally, John has significant experience working with matters involving artificial intelligence and machine learning, including neural networks and intelligent agents, as well as with FinTech matters, including technologies relating to insurance, benefits, and payment services.
Experience
Membership & Involvement
- Board of Directors: Milwaukee Youth Symphony Orchestra (MYSO)
- Founder and Co-chair: Wisconsin Chapter of the Licensing Executives Society
- Member: Wisconsin Intellectual Property Law Association; American Intellectual Property Law Association; American Bar Association; Intellectual Property Owners Association
Honors
- Selected to The Best Lawyers in America® in Litigation - Intellectual Property: 2024, 2025
- Selected to The Best Lawyers in America® in Litigation - Patent: 2024, 2025
- Selected to The Best Lawyers in America® in Patent Law: 2024, 2025
Resources & Insights
Speaking Engagements
Published Works
Firm News
- 108 Amundsen Davis Attorneys Recognized by Best Lawyers® in 2025 in America108 Amundsen Davis Attorneys Recognized by Best Lawyers® in 2025 in America
We are proud to congratulate 108 of our attorneys on being recognized by Best Lawyers® in 2025 in America.
- 88 Amundsen Davis Attorneys Recognized by Best Lawyers® in 2024 in America88 Amundsen Davis Attorneys Recognized by Best Lawyers® in 2024 in America
We are extremely excited to congratulate 88 of our attorneys on being recognized by Best Lawyers® in 2024 in America.
- Recent Developments at the PTABRecent Developments at the PTAB
John Pienkos will present, "Recent Developments at the PTAB" at the International Property Owners Association's Annual Meeting in Chicago, IL.
- What is Generative AI & How Does it Work?What is Generative AI & How Does it Work?
John Pienkos and Tom Pienkos provided a high level overview of AI from the viewpoint of AI technologists during their session,What is Generative AI & How Does it Work, at ACC-WI's Artificial Intelligence Boot Camp.
Education
Harvard Law School, J.D., 1997
University of Wisconsin-Madison, M.S. Electrical Engineering, 1994
Marquette University, B.S. Electrical Engineering, 1992
Admissions
- Illinois
- Wisconsin
- U.S. Patent and Trademark Office