The Maxham Firm provides legal services in all areas of intellectual property (IP); specializing primarily in patent, trademark, and copyright law, as well as licensing and other contract matters relating to IP. Its attorneys are members of the California bar and are registered to practice before the U.S. Patent and Trademark Office.

The firm was founded in 1984 by experienced patent and trademark lawyers and is based in San Diego. It regularly represents a variety of local, national, and foreign companies, as well as a wide variety of local small and medium-sized high technology companies. The firm has special expertise in filing and prosecuting patent and trademark applications in foreign countries, as well as foreign origin applications which it files in the U.S.

Our attorneys are active members in a number of local, state, national and international bar associations and technical and IP specialty organizations, the Carlsbad and El Centro Chambers of Commerce, The World Trade Center of San Diego, and was an early sponsor of the CONNECT Program which was associated for many years with UCSD. We believe in treating our clients with respect and working hard in efforts to bring a positive outcome to each case entrusted. Our attorneys are experienced in the following areas:

[learn_more caption=”U.S. Patents”]

  • Preparation and prosecution of utility, design and plant patent applications in the USPTO in all technologies
  • Patentability Searches and Opinions
  • Validity Opinions
  • Infringement Studies
  • Post Issuance proceedings, including Re-examinations, Re-issues, and invalidity actions
  • Licensing
  • Litigation in Federal Courts
  • Appeals to the USPTO Board of Patent Appeals and Interferences
  • Appeals to the U.S. Court of Appeals for the Federal Circuit


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  • Availability searches and opinions
  • Filing and prosecution of state and federal applications
  • Licensing
  • Trademark oppositions, cancellations and appeals
  • Infringement litigation in state and federal courts


[learn_more caption=”U.S. Copyrights”]

  • Registrations
  • Licensing
  • Litigation


[learn_more caption=”Foreign Practice”]

  • EPO, PCT and national foreign patent filings
  • Foreign Trademark Registrations
  • US patent and trademark applications originating abroad


[learn_more caption=”Other”]

  • Trade Secret Counseling, Licensing, and Litigation
  • Employment Inventions, and Non-disclosure Agreements
  • Expert witness for patent and trademark laws


We would be pleased to assist you in protecting your valuable intellectual property, contact us now and set up your preliminary consultation  Set Appointment

To see a list of the recent U.S. patents we have obtained for our clients click here. For a list of links to web sites containing information we have found helpful in our practice please click here.