Cynthia L. DeRenzo, Ph.D.

+1 202.772.8526


Cynthia L. DeRenzo, Ph.D. is counsel in Sterne Kessler’s Biotechnology & Chemical Practice Group. She assists in the preparation and prosecution of U.S. and foreign patent applications and in the research and preparation of patentability, validity, and infringement opinions. Her areas of technical expertise include genetics, molecular biology, biochemistry, and cellular biology. Cyndy is currently responsible for preparing and prosecuting applications directed to biopharmaceuticals, including antibodies and antibody-drug-conjugates, and production and uses thereof. She also conducts patentability and validity analyses in these fields.

Prior to joining the firm, Cyndy conducted research on early embryonic development in the model organism Caenorhabditis elegans. Her research was primarily focused on understanding the molecular mechanisms involved in the establishment of two main cell types of an organism: the somatic cells, which make up the body of the organism, and the germ cells, which are required for reproduction.

Cyndy earned her J.D. at Georgetown University Law Center, her Ph.D. in human genetics and molecular biology from The Johns Hopkins University School of Medicine, and her B.A. in biology from the University of Virginia.

Technical Publications

  • DeRenzo, C., Seydoux, G. 2004. A clean start: degradation of maternal proteins at the oocyte to embryo transition. Trends Cell Biol. 14(8): 420-426.
  • DeRenzo, C., Reese, K.J., and Seydoux, G. 2003. Exclusion of germ plasm proteins from somatic lineages by cullin-dependent degradation. Nature 424(6469): 685-689.
  • Potter, G.B., Beaudoin, G.M.3rd, DeRenzo, C.L., Zarach, J.M., Chen, S.H., and Thompson, C.C. 2001.The hairless gene mutated in congenital hair loss disorders encodes a novel nuclear receptor corepressor. Genes Dev. 1 (20): 2687-2701.


  • J.D., Georgetown University Law Center
  • Ph.D., Human Genetics and Molecular Biology, The Johns Hopkins University School of Medicine
  • B.S., Biology, University of Virginia


  • District of Columbia
  • United States Patent & Trademark Office

Related News & Insights From Cynthia L. DeRenzo, Ph.D.

In the News Bristol-Myers To Buy Orum's Cancer Treatment Program Law360 November 6, 2023
Press Release Sterne Kessler Elects Three New Directors and Promotes Four Attorneys to Counsel Sterne, Kessler, Goldstein & Fox January 13, 2021
Press Release Sterne Kessler Hosts Virtual Pro Bono Clinic for Small Businesses Sterne, Kessler, Goldstein & Fox P.L.L.C. April 16, 2020
In the News ImmunoGen Cancer Patent Still Valid After Phigenix's Dispute Bloomberg BNA October 29, 2015
In the News PTAB Upholds ImmunoGen’s Breast Cancer Drug Patent Law360 October 28, 2015