John D. Cravero, Ph.D.
Of Counsel

200 West Madison Street
Suite 2700
Chicago, Illinois 60606

John D. Cravero, Ph.D. is a licensed patent attorney who counsels clients in the areas of life sciences, biotechnology, biologics, pharmaceuticals, chemicals, materials and related technologies.  John has technical expertise in molecular and cellular biology, biochemistry, microbiology, animal models, and material science.

John drafts, prosecutes and manages patent portfolios in the United States as well as globally. He regularly advises clients and prepares opinions for clients on invalidity, patentability and non-infringement issues. He drafts briefs to the Patent Trials and Appeal Board in relation to inter partes examinations and interference proceedings.

John also conducts intellectual property work outside of patent prosecution matters, including assisting with litigation, licensing and trademark prosecution, and has drafted briefs to both the Supreme Court of the United States of America and the United States Court of Appeals for the Federal Circuit.

Prior to entering private practice, John was a patent attorney for the United States Department of Energy. In this role, he wrote patentability opinions, drafted patent applications and prepared responses to Office Actions issued by the U.S. Patent and Trademark Office. John focused on patents in the biotechnology, chemical, material science, and renewable energy fields. He worked with inventors from national laboratories, universities, and small businesses to draft patents for technologies such as nanoparticle use in immunological detection, polymer compounds, surfactants, biofuels, photocathode electron sources, and ionic nanocrystalline materials.

John earned his Ph.D. in Molecular Medicine from Wake Forest University, where he researched cell signaling pathways of chondrocytes and discovered that the IGF-1 signaling inhibitor TRB3 is increased in osteoarthritis. As a post-doctoral researcher at Northwestern University, John studied pancreatic cancer where he used Kras mouse models to find that Cox-2 expression in EL-positive cells induces aberrant duct development.

Drawing on his research background and extensive experience as a patent attorney, John regularly writes on intellectual property issues relating to life sciences.

Professional History

  • Of Counsel, Hahn Loeser & Parks LLP, 2019-present
  • Associate, McDonnell Boehnen Hulbert & Berghoff LLP, 2015-18
  • Patent Attorney, United States Department of Energy, 2013-15
  • Legal Extern, Law Offices of Chicago-Kent, Intellectual Property Clinic, 2012
  • Legal Extern, University of Illinois Office of Technology Management, 2010-11



Chicago-Kent College of Law, J.D., 2012

Honors & Activities: Certificate in Intellectual Property Law


Wake Forest University, Ph.D., Molecular Medicine, 2008

Honors & Activities: Dissertation, “Chondrocyte IGF-1 Resistance in Osteoarthritis: The Role of TRB3”


Augustana College, B.A., Pre-medicine and Biology, 2002

Honors & Activities: NCAA Varsity Soccer, Captain

Community Involvement

Pancreatic Cancer Action Network, Affiliate Coordinator – Chicago Affiliate, 2009-11

Awards & Distinctions

Top Author, JD Supra Readers’ Choice Awards, 2018

Bar Admissions

State of Illinois


U.S. Court of Appeals for the Federal Circuit


Supreme Court of the United States of America


US. Patent and Trademark Office (Registration Number: 71245)