Patents by Inventor J. A. Schier

J. A. Schier 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).

  • Position determining apparatus
    Patent number: 4885433
    Abstract: An apparatus for precisely locating the position of a transmitter within either a plane or within a three dimensional space. More particularly the apparatus of the invention is adapted for use with a computer and includes a pen-sized movable transmitter, or mouse, whose exact position within a plane or three dimensional space can be determined without the use of any physical connection between the transmitter and the rest of the apparatus.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: December 5, 1989
    Inventor: J. A. Schier