Patents by Inventor Kenneth E. Roehrman

Kenneth E. Roehrman 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).

  • High frequency power distribution and control system
    Patent number: 3955061
    Abstract: This disclosure describes power distribution with the use of semiconductor switches. A digital differential analyzer (DDA) selectively switches integer cycles of a generator into a load demand determined by analog sensing located at the work station associated with the load.
    Type: Grant
    Filed: August 5, 1974
    Date of Patent: May 4, 1976
    Assignee: Motorola, Inc.
    Inventor: Kenneth E. Roehrman