Patents by Inventor Roy P. Hess

Roy P. Hess 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).

  • Pneumatic drill
    Patent number: D250084
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: October 31, 1978
    Assignee: Chicago Pneumatic Tool Company
    Inventors: Raymond J. Kirschensteiner, Kenneth C. Foran, Hugh T. Greenlee, Roy P. Hess, Raymond J. Schaedler
  • Timing light
    Patent number: D258274
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: February 17, 1981
    Assignee: Fox Valley Instrument Company
    Inventors: Hugh T. Greenlee, Roy P. Hess, Donald C. McKinnon
  • Timing light
    Patent number: D261115
    Type: Grant
    Filed: May 31, 1979
    Date of Patent: October 6, 1981
    Assignee: Fox Valley Instrument Company
    Inventors: Hugh T. Greenlee, Roy P. Hess, Donald C. McKinnon
  • Electronic test meter housing
    Patent number: D264192
    Type: Grant
    Filed: April 24, 1980
    Date of Patent: May 4, 1982
    Assignee: Fox Valley Instrument Company
    Inventors: Hugh T. Greenlee, Roy P. Hess, Donald C. McKinnon, James R. Glasser
  • Electronic test meter housing
    Patent number: D264193
    Type: Grant
    Filed: April 24, 1980
    Date of Patent: May 4, 1982
    Assignee: Fox Valley Instrument Company
    Inventors: Hugh T. Greenlee, Roy P. Hess, Donald C. McKinnon, James R. Glasser, Robert L. Umbarger
  • Kinetic sculpture
    Patent number: D271674
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: December 6, 1983
    Assignee: W. R. Grace & Co.
    Inventors: Hugh T. Greenlee, Roy P. Hess
  • Portable pneumatic tool housing
    Patent number: D294001
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: February 2, 1988
    Assignee: Upneumat International, Inc.
    Inventors: Hugh T. Greenlee, Roy P. Hess
  • Infrared radiation detector
    Patent number: D301696
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: June 20, 1989
    Assignee: Burle Technologies, Inc.
    Inventors: Hugh T. Greenlee, Roy P. Hess
  • Portable pneumatic tool
    Patent number: D307103
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: April 10, 1990
    Assignee: Upneumat International, Inc.
    Inventors: Hugh T. Greenlee, Roy P. Hess
  • Portable pneumatic tool housing
    Patent number: D308931
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: July 3, 1990
    Assignee: Upneumat International, Inc.
    Inventors: Hugh T. Greenlee, Roy P. Hess