Ted R. Rittmaster


Ted R. Rittmaster is a partner and intellectual property lawyer with Foley & Lardner LLP. His practice includes patent prosecution, counseling, and licensing and opinion work for electrical, software and mechanical technology clients. Ted is Los Angeles office chair of the Intellectual Property Department. He is also a member of the firm’s Electronics Practice and Innovative Technology Sector.

Ted has worked in all aspects of patent prosecution, including U.S. and international patent applications, reissue applications, reexaminations, PTO appeals, and interference practices. He also has substantial litigation experience in trade dress, trademark and patent infringement suits. He has counseled clients in infringement and validity opinions, patents and technology licensing, and general intellectual property and licensing issues. He has served on the board of Los Angeles Intellectual Property Law Association (LAIPLA).

Ted is a former patent examiner in the electrical communications examining group of the United States Patent and Trademark Office.

Ted has substantial experience with intellectual property law matters relating to electrical and network communications, medical electronics, musical and audio electronics, and 3D printing technology. His experience in the electronic and network communication fields includes hardware and software security, wired and wireless communication systems and protocols, hardware communication devices and on-line business systems and business processes. He has experience in litigation matters relating to electronic communications systems, electronic data security systems, and streaming video systems.

Ted’s patent experience with 3D printing has involved many aspects of the technology, including printers, stereolithography and other rapid prototyping machines, and printing materials. His experience in medical electronics includes intellectual property law matters involving electronic medical devices, biological sensors, infusion pumps, and cardio-vascular systems. In cardio-vascular system technology, Ted has experience with intellectual property law matters involving pacemaker technology, cardio-pacing simulation programs, blood oxygenators, blood handling pumps, and catheters. In addition, he has experience with intellectual property law matters involving medical optics technologies, including intra-optic lens, and lens manufacturing technologies.

With regard to electronic music and audio technologies, Ted has handled patent and other intellectual property matters relating to many types of musical instruments, including electronic keyboards, electronic drums, signal processing electronics, and audio processing electronics. He also has experience in litigating patents involving electronic percussion instruments.

Awards and Recognition

  • Named an IP Star by Managing Intellectual Property magazine (2015)


  • Adjunct law professor for Western State University School of Law, taught patent law-related courses