Patents Assigned to Mark Grasso
  • 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