Patents by Inventor Robert H. Fritz

Robert H. Fritz 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: 5639055
    Abstract: A crutch stand for the temporary storage of a crutch in an upright position includes a base and upwardly-projecting crutch receivers. The base of the crutch stand preferably is hollow and can receive sand, water, or another fluid to provide stability to the stand. This permits the stand to be shipped in a lightweight form and then to become heavier for use.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: June 17, 1997
    Inventor: Robert H. Fritz