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  • Protecting Products of The Mind

    From the world’s best-selling vaccine (before COVID-19) to an invention that became a retiree’s second act, I’ve helped clients both big and small protect and commercialize their innovations.

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  • Prevnar 13®

    Discover how I helped Wyeth Vaccines protect Prevnar 13®, the world’s best-selling vaccine before COVID-19 (over $55 Billion in sales since 2010).

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  • A Retiree's Second Act

    Learn how I helped a former biomedical engineer protect his passion project.

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A Wealth of Experience

I'm Ed Ergenzinger, a US registered patent attorney and adjunct law professor with over 20 years of experience in intellectual property (IP) law. In addition to my law degree, I hold a PhD in neuroscience and have worked with a wide range of technologies. I've practiced within international law firms and as in-house IP counsel for a research institute and a start-up company. 

I provide services related to securing patents, trademarks, and copyrights. I also provide IP-related searches and opinions (e.g., patentability, freedom-to-operate/clearance, and infringement/noninfringement) as well as general IP counseling. 

I have a wealth of experience helping clients navigate the world of IP, from helping independent inventors file their first patent application to providing strategic patent portfolio planning and management for Fortune 500 companies.

From Around the Corner to Around the World

My clients span the globe. From California to Croatia to Kuwait and beyond. I have extensive experience serving as local IP counsel for companies and law firms outside the United States, and I also have extensive experience managing international filings for clients based in the United States.  

  • For individuals filing their first patent, trademark, or copyright applications, I can walk you step by step through the process.
  • For start-up companies, I can help strategically build and manage your national or international IP portfolio.  
  • For more established companies, I can not only serve as outside IP counsel, but also offer contract or retainer-based in-house IP counsel services tailored to your needs.

Ergenzinger Intellectual Property Law

Helping protect inventions, designs, proprietary information, slogans, logos, artistic works, and more.


Patent Applications and Prosecution

Patentability Searches and Opinions

Freedom to Operate Searches and Opinions

Infringement/Non-Infringement Opinions

Trademark Applications and Prosecution

Trademark Searches

General Intellectual Property Counseling

Contact Me

I'm happy to schedule a free 15-minute consultation to discuss your IP needs.

Whether you're a tinkerer who's come up with a new gadget or the CEO of a start-up that doesn't yet have the budget for a full-time in-house IP attorney, schedule a call.

The content of this website is for informational purposes only. The information provided herein is not intended as legal advice or as a legal opinion, and does not create an attorney-client relationship with website visitors. Readers of the website or of any linked websites should not act upon any information in them without first obtaining professional counsel on the subject matter. Every case or matter is unique with its own facts and applicable law, and success in prior cases or matters does not guarantee a similar outcome in another case or matter.