• vcard
314.622.6175
  • Education
    • J.D., magna cum laude, Ave Maria School of Law, 2004
    • M.S., Purdue University, 1991
    • B.S., Purdue University, 1989
  • Bar Jurisdictions
    • Missouri, 2006
    • Illinois, 2004
    • Admitted to practice before the United States Patent and Trademark Office, 2003
  • Court Admissions
    • U.S. District Court, Eastern District of Missouri
    • U.S. District Court, Western District of Missouri
    • U.S. District Court, Northern District of Illinois
    • U.S. Court of Appeals, Eighth Circuit

Michael Longmeyer brings a personal perspective and a broad range of experience in assisting clients in protecting and leveraging their proprietary technologies. He is committed to delivering results for clients who need to protect their most important inventions. Mike provides a full range of intellectual property services to clients, including:

  • noninfringement and invalidity opinions
  • patentability
  • due diligence
  • patent landscape analyses

He has secured patent protection for numerous computer-implemented inventions in electronic transactions, information processing and automatic control systems, as well as for numerous mechanical inventions in aerospace and power generation technology. 

Prior to practicing law, Mike worked as an engineer for NASA at the Marshall Space Flight Center in Huntsville, Alabama, where he developed hardware and software for real-time data acquisition and control systems and provided other structural testing and microgravity experiment support. 

Mike also clerked for The Honorable Judge Raymond W. Gruender of the U.S. Court of Appeals for the Eighth Circuit. 

  • Obtained Foundational Portfolio of Patents for Next-Gen Technology for Multinational Company-- Obtained a suite of patents for newly developed, next-generation technology, establishing a broad wall of protection not just for the new technology as practiced by the client, but also for white space between competitor technology and the new technology.
  • Payment Authentication Patent Portfolio for Fintech Client-- Developed patent portfolio for large fintech client in the area of payment authentication services. Multiple patent attorneys prepared and filed numerous patent applications directed to authenticating online users using client device metadata.
  • Successful PTAB Administrative Appeal-- Won an administrative appeal for a global technology company before the U.S. Patent Trial and Appeal Board in a case involving a patent application that sought to protect a method of predicting a consumer’s future purchases, based on previous transaction card purchases indicating that a “life event” had recently occurred for the consumer. The United States Patent and Trademark Office had rejected the application as directed to an abstract idea under a 2014 Supreme Court case. In its decision in favor of the client, the Appeal Board held that any abstract idea was integrated into a practical application because the patent claims “improve the underlying consumer behavior prediction technology.”
  • IP Due Diligence for $900 million Business Acquisition--Handled the IP due diligence for a client that acquired a payments technology company valued at about $900 million.
  • Won Summary Judgement in Patent Case for Manufacturer-- Drafted a successful memorandum in support of summary judgment of infringement, and in opposition to summary judgment of invalidity, in a case involving several patents directed to various aspects of heavy-duty cleaning equipment.
  • Eight Figure Patent Infringement Verdict Preserved in Reexamination-- Successfully defended client's patent in a reexamination proceeding initiated by a competitor at the U.S. Patent and Trademark Office, preserving an eight-figure litigation verdict for the client against the competitor for infringement of the patent.