Jayson Hongsermeier Photo

Jayson L. Hongsermeier*

Senior Patent Agent

*Names that appear with an asterisk indicate a Michael Best professional not admitted to practice law.


Jayson brings more than a decade of experience to his job advising clients related to patentability as well as the filing of patents, drafting of patent applications, and prosecution of both global and U.S. patent applications. Armed with a background in high energy physics, he provides sound counsel in the following technical areas:

  • Advanced internal combustion engine technology
  • Core vehicle subsystems
  • Vehicle interiors and accessories
  • Office products
  • Commercial printing and binding equipment
  • Composite panel construction
  • Industrial product handling and treatment equipment
  • Mechanical systems of nuclear reactors


Representative engagements include:

  • Successfully appealed the rejection of a patent application for vehicle wheel and tire sealing. Jayson’s arguments for non-obviousness were adopted by the Board of Patent Appeals and Interferences.
  • Conducted an examiner interview on behalf of a global, Wisconsin-based printing company for a novel method of large-scale customized printing, resulting in immediate allowance of all claims
  • Overcame a final rejection of a patent for engine cooling fans by the U.S. Patent and Trademark Office. Jayson accomplished this via an appeal brief with technical arguments that led the examiner to withdraw all rejections, rather than forward to the Board of Patent Appeals and Interferences.
  • Drafted and filed a large family of design patent applications for an all-new model from a Milwaukee-based motorcycle company, including coordination of filings in multiple countries throughout Europe, South America, and Asia. Jayson conducted an in-depth review and documentation of design patent laws and drawing rules in each country, and successfully filed more than 40 applications to cover critical aspects of the client’s product.
  • Worked closely with a Midwest automotive security company to file a series of provisional and non-provisional patent applications for vehicle locks. Jayson accomplished this during multiple stages of active product development and evolution to ensure optimal protection while minimizing client cost.
  • Prepared and filed a suggestion of interference in a U.S. patent application for an industry leader in the field of document shredders. To achieve this, Jayson conducted an in-depth study of numerous competitor patents and applications, so as to seize patent rights for the client based on an earlier priority regarding the common subject matter.
  • Conducted multiple phone interviews with a U.S. Patent and Trademark Office examiner to determine the broadest allowable language for claim amendments to end a 10-year application pendency for the client, a manufacturer of shipping containers.

Prior to joining Michael Best, Jayson assisted in developing and analyzing mechanical systems and specialized equipment to support physics research conducted in high energy particle accelerators at Fermi National Accelerator Laboratory.


Court Admission



Court Admission

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