Patents by Inventor Donald C. Andrus

Donald C. Andrus 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).

  • Patent number: D437071
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: January 30, 2001
    Assignee: Regent Lighting Corporation
    Inventors: Donald C. Andrus, Pei Sheng Qian
  • Patent number: D332524
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: January 19, 1993
    Assignee: The Disston Company
    Inventors: Larry R. Gray, Gerald F. Slocum, Donald C. Andrus, James E. Edgell
  • Patent number: D408091
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: April 13, 1999
    Assignee: Regent Lighting Corporation
    Inventors: Donald Wayne Joyner, Donald C. Andrus