Plymouth Nelson Photo

Plymouth D. Nelson



Plymouth is known for his attention to detail and unflagging commitment to his clients’ business goals. He approaches each project with the mindset of a business partner, while also closely working with engineers and staff to understand the nuts and bolts of the client’s technology. These qualities make him particularly successful in drafting and prosecuting patent applications directed to such items as compressors, pumps, electric motors, agricultural equipment, automotive fuel, braking, and seating systems, shelving and storage units, water purification systems, cookware and golf clubs.   

Plymouth’s practice also includes the preparation of invalidity, non-infringement, and clearance opinions, as well as patentability analysis. In addition, he counsels clients on the acquisition and enforcement of patent rights and the avoidance of competitor patents. With his knowledge of foreign patent laws and of the Patent Cooperation Treaty (PCT), clients look to Plymouth to help manage their patent portfolios and develop strategies to most efficiently maximize those positions in the U.S. and internationally.


Prior to joining the firm, Plymouth worked as an attorney at an Intellectual Property firm in Washington, D.C., after serving in the Judge Advocate General’s (JAG) Corps of the U.S. Army. 

Before and during law school, Plymouth was a practicing engineer for six years designing water treatment and HVAC systems. He is a registered professional engineer in Minnesota and Maryland.

Professional Activities

  • Member, American Intellectual Property Law Association





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