Patents by Inventor Thomas G. Frischmann

Thomas G. Frischmann 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).

  • Barrier device for children
    Patent number: 5255958
    Abstract: A struggling barrier for children includes a semirigid wall for blocking struggling movements which is attached to a flexible sheet for receiving sitting body weight of children. The method of sitting on the flexible sheet transfers body weight force to the attached wall thereby causing the flexible and movable device to become a semirigid and difficult to move barrier device.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: October 26, 1993
    Inventor: Thomas G. Frischmann