Patents by Inventor William Feenstra

William Feenstra has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250187754
    Abstract: Some embodiments of the present invention may include a caddy for securely storing aircraft pre-flight fuel testing equipment, including a handle, a first compartment configured to securely hold a fuel testing jar, and a second compartment configured to securely hold a fuel cap, wherein the first and second compartment openings are oriented toward the top of the caddy. Aspects of the present invention may also include a method of pre-flight fuel testing of an aircraft, including the steps of removing a fuel cap from the aircraft fuel tank and stowing the fuel cap from the aircraft fuel tank in a preflight fuel testing caddy, and removing a fuel testing jar from the preflight fuel testing caddy for fuel testing.
    Type: Application
    Filed: December 9, 2024
    Publication date: June 12, 2025
    Inventors: Eric David Effinger, Matilda McLean, William Feenstra, Scott Austin