Patents by Inventor Andrew C. Hogan

Andrew C. Hogan 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).

  • Low configuration keyboard
    Patent number: 5525979
    Abstract: A low-profile keyboard (5) each switch (3) having a dished keybutton (3) held upward by a rubber dome (49) and having ribs (55) which depress extension (43 and 31) which carry electrical traces (45 and 33) to activate the switch. The assembly is mounted on post (15). A lower recess (21) permits excess travel to a quiet stop. The rubber sheet (47) provides spill resistance.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: June 11, 1996
    Assignee: Lexmark International, Inc.
    Inventors: Vencil D. Engle, Andrew C. Hogan, Larry E. Stahlman