Intellectual Property Industries

Bar Admissions

  • District of Columbia
  • Virginia
  • U.S. Patent and Trademark Office


  • J.D., cum laude, American University-Washington College of Law, 2005
  • B.S., Chemical Engineering, Northwestern University, 1999
T +1 202.721.5488
F +1 202.344.8300

Donald H. Heckenberg, Jr.


Don Heckenberg knows Patent Office practices and procedures, inside and out.  His career started at the USPTO, where he was promoted to a primary examiner. Don has drafted and prosecuted numerous patent applications. He has also represented clients in complex USPTO proceedings, including post-grant AIA trials, reissue applications, interferences, and reexaminations.  Outside his Patent Office practice, Don provides counseling on patent and trademark related issues, such as due diligence investigations and opinions. 

Don has expertise in diverse technologies in the chemical, pharmaceutical, and mechanical arts, such as small molecule drugs, medical devices, vehicle emission technologies, plastics, papermaking, and laser toner cartridge technology. 

Representative Clients

  • Canon
  • S.C. Johnson & Son
  • Medtronic
  • AstraZeneca
  • Gilead
  • Johnson Matthey
  • Georgia-Pacific