Patents by Inventor Robert D. Harr

Robert D. Harr 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).

  • In-line roller skate with interception of vibrations
    Patent number: 5855383
    Abstract: By interposing between the roller-carrying frame of an in-line roller skate and a rigid plate positioned inside the shoe an insert of elastomeric material having lugs projecting upwards and passing through the sole of the shoe, vibrations and bumps caused by the running of the rollers on the ground are intercepted and damped.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: January 5, 1999
    Assignee: Tecnica SPA
    Inventors: Robert D. Harr, Antonello Marega, Andrea Gabrielli
  • Wheel hub
    Patent number: D330883
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: November 10, 1992
    Assignee: Kryptonics, Inc.
    Inventor: Robert D. Harr
  • Wheel
    Patent number: D330884
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: November 10, 1992
    Assignee: Kryptonics, Inc.
    Inventor: Robert D. Harr
  • Wheel
    Patent number: D339320
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: September 14, 1993
    Assignee: Kryptonics, Inc.
    Inventor: Robert D. Harr