About Us

Attorney Profiles

Saul L. Zackson Ph.D., J.D.

Saul Zackson started his professional career as a laboratory researcher in molecular biology. After 20 years of working in various aspects of life sciences and biotechnology, Mr. Zackson noticed a gap in the legal system for scientists—the community needed someone who could secure effective intellectual property rights for advanced scientific products and processes. He attended law school with the intention of practicing law as it pertained to science, and after nine years working in patent departments of other law firms, he established his own firm in St. Louis.


Now in its eighth year, Zackson Law LLC serves local, national, and international clients in their pursuit of patents for all levels of scientific research and inquiry. Mr. Zackson also provides freedom-to-operate opinions, and can address licensing needs. The firm’s clients include universities, biotechnology corporations including start-ups, and individual inventors. Mr. Zackson also takes attorney referrals from law firms in need of specialized guidance in patent law. He has established numerous patents in a variety of fields; several examples are listed on the Portfolio page.


Admitted to Practice

  • Connecticut, 2001
  • Missouri, 2002
  • Registered to practice before U.S. Patent and Trademark Office



  • Yale University, B.A., Molecular Biophysics and Biochemistry, cum laude, 1977
  • Cambridge University, MRC Laboratory of Molecular Biology, 1978
  • University of California, Berkeley, Ph.D., Molecular Biology, 1983
  • Franklin Pierce Law Center, J.D., 2001




Publications in Cell, Science, Journal of Biological Chemistry, Proceedings of the National Academy of Sciences, Mechanisms of Development, Molecular and Cellular Biology, Developmental Biology, Developmental Genetics, and Biochemical and Biophysical Research Communications

  • Churchill Scholarship for one year of study at Churchill College, and MRC Laboratory of Molecular Biology, Cambridge University, Cambridge, UK
  • Kaiser Fellowship, University of California (competitive award)
  • Cold Spring Harbor Laboratory: awarded support for post-graduate research studies in neurobiology (competitive award)
  • Regents Fellowship, University of California (competitive award)
  • American Cancer Society Postdoctoral Fellowship (declined) (competitive award)
  • Anna Fuller Fund Postdoctoral Fellowship (declined) (competitive award)
  • Damon Runyon-Walter Winchell Postdoctoral Fellowship (competitive award)
  • Society of General Physiology Scholarship for Summer Studies at the Marine Biology Laboratory (competitive award)
  • Scholar, Alberta Heritage Foundation for Medical Research
  • Alberta Cancer Board transgenic mouse facility grant (competitive award)
  • Alberta Cancer Board monoclonal antibody facility grant (competitive award)
  • Medical Research Council of Canada operating grant
  • Oliver Wendell Holmes, Jr. Scholarship (three-year, full-tuition, merit-based scholarship) at Western New England College School of Law, Springfield, Massachusetts (declined)


Legal experience

  • Harness, Dickey & Pierce, PLC, 2001–2004
  • Sonnenschein Nath & Rosenthal LLP, 2004-2010
  • Zackson Law LLC, 2010-


Practice Areas

  • Intellectual property
  • Patents
  • Technology
  • Life Sciences
  • Pharmaceuticals and Chemicals