Tambryn K. VanHeyningen, Ph.D.

Madison Office
(608) 244-7655

Practice Areas

  • Patent
  • Transactions
  • Client Counseling

Technology Areas

  • Biotechnology
  • Chemistry & Pharmaceutical


  • Kalamazoo College (B.A. Biology, cum laude, 1991)
  • Washington University School of Medicine (Ph.D. Molecular Microbiology and Microbial Pathogenesis, 1997)
  • Washington University School of Law (J.D., 2005)

Bar and Court Admissions

  • United States Patent & Trademark Office
  • Supreme Court of Wisconsin

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Tambryn K. VanHeyningen, Ph.D. is a registered patent attorney and partner at Andrus Intellectual Property Law.

Tammy focuses her practice on domestic and international patent prosecution, strategic patent portfolio development, licensing, and IP management.  She also provides client counseling related to patentability, freedom-to-operate, non-infringement and invalidity opinions.

Tammy’s experience includes drafting and prosecuting patents with an emphasis in life sciences, chemistry and biotechnology.  Her work includes patent applications related to vaccines, antibodies, protein therapeutics, gene therapy compositions, cell and tissue cultures including tissue replacement or regeneration, siRNA, small molecule or biologic pharmaceuticals, plant patents, medical diagnostics including genomic or proteomic markers predictive of therapeutic response, prognosis or metastases, biologic assays, research tools including cloning vectors, compositions and methods for labeling, detecting or isolating bio-molecules, genetically engineered plants, animals and microorganisms, treatment methods, bio-processing, bio-fuels and food science and processing.  Tammy has worked for university technology transfer offices, small start-ups, and large research companies.  

Tammy has more than 10 years of experience as a research scientist working in the fields of microbiology, immunology, and mechanisms of disease.  Her Ph.D. thesis research was directed to understanding the T cell and macrophage mediated immune response to mycobacteria.  She also completed post-doctoral research developing a transgenic mouse model and recombinant herpes simplex viruses to investigate viral latency and reactivation.  She has taught courses in virology, genetics and molecular biology. In 2014, Tammy was seclected for inclusion in the IAM Patent 1000 as a top patent practitioner in Wisconsin.

Before joining Andrus in April 2010, Tammy worked for a Midwestern general practice law firm and gained experience in intellectual property and trade secret litigation.  Tammy has authored several scientific research articles and written and presented on many aspects of intellectual property law.

Tammy received a bachelor of arts degree in biology from Kalamazoo College in 1991 (cum laude), a doctorate in molecular microbiology and microbial pathogenesis  from Washington University School of Medicine in 1997 and a juris doctor degree from Washington University School of Law in 2005. 

Tammy is admitted to practice law before the Supreme Court of Wisconsin and the U.S. Patent and Trademark Office.