Patents by Inventor Kathleen K. Madaus

Kathleen K. Madaus 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).

  • Simulated keyboard system
    Patent number: 4580984
    Abstract: Method of teaching keyboarding by providing a first simulated keyboard which is substantially the same size as a standard keyboard and which has means for dividing the keys into appropriate standard finger grouping columns and providing a second simulated keyboard which has means for visually dividing the keys into the same finger grouping columns as the first simulated keyboard. The invention also consists of first and second simulated keyboards for carrying out the above method.
    Type: Grant
    Filed: November 2, 1984
    Date of Patent: April 8, 1986
    Inventor: Kathleen K. Madaus