Patents by Inventor Paul L. Geyer

Paul L. Geyer 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).

  • Infrared signal transmitter
    Patent number: 5359448
    Abstract: An infrared signal transmitter which has a signal generator enclosed in a housing, and a transmitter head which is removably attached thereto. The transmitter head includes a plurality of infrared transmitting elements arrayed in selected patterns to provide multidirectional transmission of infrared signals to a waiting receiver. The transmitter head and housing are provided with mating plug-in connectors permitting the transmitting head to be easily changed to provide selected transmitting arrays or patterns. The transmitter has its own power supply to be self-contained and portable.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: October 25, 1994
    Assignee: Assistive Listening Device Systems, Inc.
    Inventors: Charles A. Laszlo, Paul L. Geyer