S Systems Inc.

S Systems Inc.

John Strawn

15 Willow Ave Larkspur, CA 94939

About the Expert

Decades of experience in industry writing in low-level (assembler) and high-level languages (C, C++, Java). Experience also with Javascript, HTML, XML, SQL, other languages. Course work at Stanford during Ph.D. in programming.

Areas of Expertise

  • Intellectual Property
  • Software

Expert's Profile

Dr. Strawn is a seasoned expert witness specializing in patent litigation with experience in District Court, the International Trade Commission, and the US Patent Office. He also handles trade secret and copyright litigation involving software. He has been deposed 19 times, testified at trial 3 times including the landmark case Lucent v Microsoft, and submitted declarations in 5 sets of IPRs. Dr. Strawn handles validity and infringement for both plaintiffs and defendants. Based on his own research, he writes his own reports and declarations.

Dr. Strawn is an accomplished programmer in high-level languages such as C, C++, and Java as well as in low-level assembly language for digital signal processors. He also works with other languages such as Javascript, HTML, XML, even SQL. Dr. Strawn draws on experience gathered with mainframe computers and punched cards, mini computers, microcomputers, personal computers, embedded processors such as ARM, and mobile devices, especially cell phones.

Dr. Strawn’s programming career presaged and then closely tracked the development of software and digital media starting long before the advent of the personal computer and the compact disc. Dr. Strawn has decades of experience in academia and industry as researcher, employee, manager, and independent consultant. He has published widely and is considered to be a skilled teacher.

Personal Achievements


  • Ph.D., Stanford, 1985
  • Fulbright Scholar, Technical University Berlin, Germany, 1973-74, renewed 1974-75. Graduate-level course work in music theory/history, audio engineering, analog studio electronics, cybernetics, control theory, coding theory, Japanese; all course work in German. Extensive recording studio and live concert sound reinforcement experience, including Berlin Jazz Festival and the Metamusik Festival (program). PDP-11 and PDP-8 assembler and machine language. Travel throughout Europe.
  • B. Mus., Organ and Music Theory, Oberlin, 1985. Programming in BASIC, FORTRAN, MUSIC V on an IBM 360 mainframe. Experience with analog synthesizers and digital music synthesis. Exchange semester, University of Hamburg, Germany, 1971, course work in German literature and psychology.


  • Fellow (1996) and Life Member, Audio Engineering Society.
  • Life Senior Member, IEEE.
  • Member, Acoustical Society of America.

More Information

  • Resume
    CV with litigation and programming experience

Listed in the Following States

S Systems Inc. is listed with ExpertPages in the following jurisdictions: All US Regions and States, Canada (all Provinces).