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Daniel Keeler’s practice primarily focuses on preparing and prosecuting patent applications. His technical expertise includes electronics, optics, mechanical devices, computer software, and networking. He has experience drafting and prosecuting patent applications for a wide variety of clients including start-ups, Fortune 500 companies, universities, and solo inventors. He has extensive experience drafting patents relating to a range of subject matter from Cloud-based systems, cryptography, and Fourier Ptychography to telecommunications, aviation, and semi-conductor fabrication.


Prior to joining Kwan & Olynick, Mr. Keeler spent four and a half years as an associate at a mid-sized patent prosecution boutique firm. Prior to becoming a patent attorney, he was a computational physicist in the Tiesinga Computational Neurophysics Lab at the University of North Carolina, where he modeled several possible biophysical mechanisms underlying attention and stimulus selection in the human brain. Previously, he worked as a research assistant at Lawrence Berkeley National Labs, focusing on error analysis in computational models of the diffusion of atmospheric pollutants in the San Francisco Bay Area.


Mr. Keeler earned his J.D. from the U.C. Berkeley School of Law in 2013, receiving jurisprudence awards in patent prosecution and in a statistics course. While attending U.C. Berkeley, he fulfilled the pro bono pledge through his volunteer work at several organizations. Mr. Keeler graduated cum laude from U.C. San Diego with a B.S. in physics. He also received an M.S. in physics from the University of North Carolina.

Daniel Keeler


  • B.S., University of California at San Diego, Physics

  • M.S., University of North Carolina, Physics

  • J.D., University of California at Berkeley, School of Law

Bar Admissions:

  • State Bar of California

  • U.S. Patent and Trademark Office

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