Patents by Inventor Howard L. Kaplan

Howard L. Kaplan 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).

  • Tremor measurement device
    Patent number: 4306291
    Abstract: Apparatus is provided in which a signal indicative of the tremor is sensed. This signal is amplified in a variable gain amplifier. During an initial time interval the size of the amplifier signal is determined and the gain of the amplifier is adjusted in response to the signal size. Then means are provided for indicating the size of frequency of the adjusted signal during a further time period to give a tremor measurement which may be relatively easily interpreted.
    Type: Grant
    Filed: December 14, 1979
    Date of Patent: December 15, 1981
    Assignee: Alcoholism & Drug Addiction Research Foundation
    Inventors: Duane H. Zilm, Howard L. Kaplan, Dominique M. Durand