Patents by Inventor Donald E. Still

Donald E. Still 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: D294496
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: March 1, 1988
    Assignee: American Telephone & Telegraph Company, AT&T Information Systems Inc.
    Inventors: Golub Drakulovic, Charles F. Liebler, Larry Sliker, Thomas L. Stahly, Donald E. Still, Gordon E. Sylvester
  • Patent number: D294500
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: March 1, 1988
    Assignee: American Telephone & Telegraph Company, AT&T Information Systems Inc.
    Inventors: Golub Drakulovic, Charles F. Liebler, Larry Sliker, Thomas L. Stahly, Donald E. Still, Gordon E. Sylvester