Patents by Inventor Bert Blumberg

Bert Blumberg 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 free drinking fountain
    Patent number: D261518
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: October 27, 1981
    Inventors: Ann F. Butter, Bert Blumberg