Patents by Inventor Lee F. Radtke

Lee F. Radtke 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).

  • Electronic racing game, or similar article
    Patent number: D255807
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: July 8, 1980
    Assignee: Interstate Industries, Inc.
    Inventor: Lee F. Radtke
  • Engine exhaust emission analyzer
    Patent number: D257331
    Type: Grant
    Filed: July 28, 1978
    Date of Patent: October 14, 1980
    Assignee: Sun Electric Corporation
    Inventors: James R. Shaffer, David E. Maxwell, Lee F. Radtke
  • Feeder housing
    Patent number: D273196
    Type: Grant
    Filed: October 8, 1981
    Date of Patent: March 27, 1984
    Assignee: Duo-Fast Corporation
    Inventor: Lee F. Radtke
  • Computer analyzer
    Patent number: D310494
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: September 11, 1990
    Assignee: Sun Electric Corporation
    Inventors: Robert J. Rzadzki, Lee F. Radtke
  • Engine analyzer
    Patent number: D310789
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: September 25, 1990
    Assignee: Sun Electric Corporation
    Inventors: James R. Shaffer, Lee F. Radtke
  • Diagnostic analyzer
    Patent number: D313764
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: January 15, 1991
    Assignee: Sun Electric Corporation
    Inventors: James R. Shaffer, Lee F. Radtke
  • Combined engine analyzer and cart
    Patent number: D313947
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: January 22, 1991
    Assignee: Sun Electric Corporation
    Inventors: James R. Shaffer, Lee F. Radtke