Duane H. Mathiowetz


A mechanical engineer turned patent attorney and highly effective intellectual property litigator who is consistently ranked as a California Super Lawyer, Duane has advised and helped clients ranging from Series B to $3 billion companies protect their intellectual property and mitigate liability, from product development through commercialization. For over 30 years, Duane’s IP and commercial litigation practice has continued to evolve as he has specialized in plaintiff and defense-side technology-centric litigation including patent, trademark, copyright, unfair competition, and trade secret matters.  His expertise spans multiple industries including high tech, electronics, communications, medical device, mechanical, and manufacturing. Prior to joining Practus, Duane was a partner at a boutique commercial litigation law firm where he handled their tech-related IP litigation matters. He was also a partner at Foley & Lardner where he represented start-ups and SMBs in IP matters involving consumer and commercial products. Duane serves as an adjunct professor of Patent Law at Golden Gate University Law School.

Interestingly, water makes up about 70% of our brains and hearts, and a little more than 70% of the earth is covered by water.  For Duane however, that's not nearly enough. Playing ice hockey is Duane’s passion and he’s a serious fan of the San Jose Sharks.  He and his family enjoy yearly trips to the warm ocean waters and beautiful beaches of Hawaii, and he's even brought that love of the ocean into his home where he has built and maintains a salt-water aquarium.