Patents by Inventor John P. Groth

John P. Groth 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).

  • Shock absorbent dunnage device
    Patent number: 4566831
    Abstract: An improved shock absorbing dunnage device particularly suited for use in tightly packing railroad box car loads is disclosed. A sealed outer envelope containing a filler of wooden particulate material having reduced moisture content provides a simple, highly effective and cost efficient dunnage device.
    Type: Grant
    Filed: February 1, 1980
    Date of Patent: January 28, 1986
    Assignee: Andersen Corporation
    Inventor: John P. Groth