Carl. B. Wischhusen

Carl. B. Wischhusen

Carl. B. Wischhusen

US Patent Attorney

Carl is a U.S. attorney based in New York City who has over 20 years of experience in intellectual property law, including patent prosecution, litigation, licensing, and due diligence, in a wide range of electrical and mechanical technology areas.

Carl's practice includes: drafting patent applications and handling all aspects of patent prosecution before the U.S. Patent and Trademark Office (USPTO); preparation and handling of ex parte appeals to the Patent Trial and Appeal Board; and post-grant proceedings, such as reissue and re-examination. He manages the filing and prosecution of counterpart patent applications in foreign patent offices around the world.

His practice also includes:

  • Preparation of invalidity, patentability, and freedom-to-operate opinions.
  • Counselling clients on patent prosecution strategy, design-around solutions, and patent licensing, including analysis of existing and proposed products for freedom-to-operate clearance and patentability.
  • Intellectual property due diligence in support of business and investment deals, including analysis of patent portfolios and evaluation of IP-related portions of asset purchase and licensing contracts.
  • Drafting of intellectual property licensing and technology transfer agreements.
  • Performing pre-litigation research and analysis, including analyzing portfolios of pending patent applications to evaluate strength and propose prosecution strategies in view of potential future litigation.
  • Performing infringement analysis on competitors' products and invalidity analysis on competitors' patents.

Carl’s technical background as a practicing electrical engineer included: microwave and radio-frequency (RF) communications and devices; antennas, including electronically-steerable phased-arrays; radar systems; and satellite communication systems.

  • Georgetown University Law Center, J.D., 2000
  • Johns Hopkins University, M.S.E.E.
  • Virginia Polytechnic Institute and State University, B.S.E.E.
Bar Admissions:
  • New York
  • United States Patent and Trademark Office (USPTO)
  • New York Intellectual Property Law Association (NYIPLA) - Chair, Patent Law & Practice Committee