Patents by Inventor James V. Landi

James V. Landi 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).

  • Patent number: 4040619
    Abstract: A flexible and resilient manually collapsible transparent hour-glass shaped housing contains a loosely held liquid-saturated sponge in each of the upper and lower chambers of the housing. One chamber is squeezed to drive liquid from the upper to the lower chamber for exercising the hand and fingers, and turned upside down to repeat the exercise. The device can be used for amusement by determining if successive participants in a contest can squeeze additional liquid from one chamber to the other.
    Type: Grant
    Filed: August 24, 1976
    Date of Patent: August 9, 1977
    Inventor: James V. Landi