Patents by Inventor John Hamagami

John Hamagami 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).

  • Head phone
    Patent number: D354958
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: January 31, 1995
    Assignee: Mark Grasso
    Inventors: Mark Grasso, John Hamagami, Justin Carroll
  • Walkie-talkie
    Patent number: D359281
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: June 13, 1995
    Assignee: Mark Grasso
    Inventors: Mark Grasso, John Hamagami, Justin Carroll
  • Walkie-talkie
    Patent number: D359282
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: June 13, 1995
    Assignee: Mark Grasso
    Inventors: Mark Grasso, John Hamagami, Justin Carroll
  • Belt clip
    Patent number: D359464
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: June 20, 1995
    Assignee: Mark Grasso
    Inventors: Mark Grasso, John Hamagami, Justin Carroll
  • Portable cassette player
    Patent number: D360207
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: July 11, 1995
    Assignee: Mark Grasso from Hamagami and Carroll
    Inventors: Mark Grasso, John Hamagami, Justin Carroll
  • Portable cassette player
    Patent number: D366485
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: January 23, 1996
    Assignee: Mark Grasso
    Inventors: Mark Grasso, John Hamagami, Justin Carroll