Patents by Inventor George Keyko

George Keyko 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).

  • Combined clipboard and timer
    Patent number: D243688
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: March 15, 1977
    Assignee: Quartz Timing Corporation
    Inventors: George Keyko, Robert H. Esslinger
  • Night chemical illuminant torch
    Patent number: D356276
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: March 14, 1995
    Assignee: Kai Gee Enterprise Co., Ltd.
    Inventors: Ke-Chuan Liu, George Keyko