Patents by Inventor Jeffrey Lee Sawyer

Jeffrey Lee Sawyer 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).

  • Knee extension training device
    Patent number: 11077338
    Abstract: A knee extension training device is provided with knee abutment rolls, heel abutment rolls and feet anchor rolls to facilitate a user from standing on the device in an upright manner with the knees, the heels, and the feet abutting the respective abutment rolls such that knee extension stretching and flexion exercise can be carried out by utilizing the user's own body weight.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: August 3, 2021
    Inventors: Eduard Levin, Gleb Gluhovsky, Jeffrey Lee Sawyer