Patents by Inventor Richard P. Hatch

Richard P. Hatch 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).

  • Dipstick wiper
    Patent number: D331478
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: December 1, 1992
    Inventor: Richard P. Hatch
  • Pneumatic amplifier head
    Patent number: D676961
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: February 26, 2013
    Inventors: Richard P. Hatch, Jesse R. Curtis
  • Dipstick wiper
    Patent number: D811032
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: February 20, 2018
    Inventor: Richard P. Hatch