Leonidas (Leo) Boutsikaris is an Of Counsel attorney in the Electrical Patent Prosecution practice group.  His practice involves all phases of patent preparation and prosecution, including appellate practice before the United States Patent Trial and Appeal Board. Having worked as a Patent Examiner (becoming a Primary Examiner in 2005) he understands both sides of the patent prosecution process, and understands effective examiner interviewing strategies and prosecution procedures.  Dr. Boutsikaris regularly conducts interviews with USPTO Examiners in order to better understand the Examiners’ positions and expedite the prosecution of applications while advancing his clients’ positions.

Dr. Boutsikaris has extensive experience in patent prosecution in high technology fields, including optical devices, lasers, optical waveguides, semiconductors, liquid crystal displays, optical sensors, solar cells.  Also prosecuted patent applications related to printers and copiers, wireless networks, computer games and systems.  Clients included large, high technology, international companies. While at the PTO, Dr. Boutsikaris examined applications in various classes, including optics-systems and elements, optical fibers and waveguides and optical memories. Dr. Boutsikaris has also experience as a research scientist conducting basic and applied original research in academia and in a European research institute in areas such as dynamic holography and optical information processing and storage, and development of new optoelectronic materials, authoring many scientific papers published in prestigious scientific journals.

Using his technological knowledge and legal expertise related to IP matters, Dr. Boutsikaris provides counseling on a wide range of matters, including patent prosecution strategies, and patentability.


  • Catholic University of America, Columbus School of Law (J.D.)
  • Johns Hopkins University (Ph.D.)
    • Electrical and Computer Engineering
  • Johns Hopkins University (M.S.E.)
    • Electrical and Computer Engineering
  • University of Michigan (M.S.)
    • Computer, Information, and Control Engineering
  • University of Maryland (M.S.)
    • Electrical Engineering
  • University of Athens (B.S.)
    • Physics


  • Maryland, 2006
  • District of Columbia, 2007
  • United States District Court for the District of Maryland, 2007
  • District of Columbia District Court, 2008


  • Bronze Medal Award, United States Department of Commerce, for Superior Federal Service, June 2005
  • Master’s Level Examining Status, United States Patent and Trademark Office, for demonstrating comprehensive knowledge and thorough understanding of technologically complex art, May 2004
  • Certificate of Recognition, United States Patent and Trademark Office, for noteworthy contribution to the effective and efficient operation of the department of commerce, 2000, 2001


“Coherent optical detection through two wave mixing in photorefractive materials,” Selective Papers on Photorefractive Materials, 1994, SPIE Milestone Series (Volume MS 86) AND Optic Letters 13(6), 1998, p 506

“Multiplexed static and dynamic photorefraction in BSO crystals at 780 nm”, Journal of Optical Society of America B 11(10), 1994, p 1196

“Excimer laser use for microetching computer generated holographic structures”, Applied Optics 35(32), 1996,  p 6304

“Determination of the photorefractive parameters of Bi12SiO20 by study of the dynamic behavior of complementary gratings”, Journal of Optical Society of America B 15(3), 1998, p 20142


  • Greek

Professional Affiliations

  • American Bar Association
  • American Intellectual Property Law Association