Patents by Inventor Daniel P. Berkman

Daniel P. Berkman 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).

  • Foldable guitar stand
    Patent number: D436465
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: January 23, 2001
    Inventor: Daniel P. Berkman