Patents by Inventor Ernest Wittner

Ernest Wittner 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).

  • Portable personal computer
    Patent number: 5021922
    Abstract: The computer is adapted to be used and stored on its narrow bottom surface (24), which has an area which is less than the area of the front surface (25) of the computer. A keyboard (4) is pivotally mounted to the back of a cover on the front surface. A floppy disk drive (3) is pivotally mounted behind the cover and the drive can be operated in the open or closed positions. A movable flat display (2) is positioned parallel to the front surface of the computer when the display is in the retracted position. A frictional mechanism (FIG. 5A) permits the display to be positioned at any angle.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: June 4, 1991
    Assignee: International Business Machines Corporation
    Inventors: Myron F. Davis, Randall W. Martin, Hideo Nomura, Richard F. Pollitt, Ernest Wittner, Wataru Yoshikawa
  • Data communication terminal
    Patent number: D248024
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: May 30, 1978
    Assignee: International Business Machines Corporation
    Inventors: Robert Paul Tennant, Ernest Wittner
  • Blood cell separator
    Patent number: D253190
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: October 16, 1979
    Assignee: International Business Machines Corporation
    Inventors: Loring C. Bixler, Ernest Wittner
  • Extendable computer storage desk
    Patent number: D284337
    Type: Grant
    Filed: April 11, 1983
    Date of Patent: June 24, 1986
    Assignee: International Business Machines Corporation
    Inventors: Mark A. Papich, Ernest Wittner
  • Modular cartridge storage rack
    Patent number: D286712
    Type: Grant
    Filed: May 26, 1983
    Date of Patent: November 18, 1986
    Assignee: International Business Machines Corporation
    Inventor: Ernest Wittner
  • Portable computer
    Patent number: D315553
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: March 19, 1991
    Assignee: International Business Machines Corporation
    Inventors: Myron F. Davis, Ted F. Kelley, Jr., Randall W. Martin, Tomoyuki Takahashi, Ernest Wittner