Patents by Inventor Axel Stark

Axel Stark 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).

  • Multifrequency antenna matching apparatus with antomatic tuning
    Patent number: 4521913
    Abstract: An antenna matching apparatus tunable to different frequencies is disclosed for use with a high frequency transmitter that is rapidly switchable between different transmitting frequencies by a control unit according to a predetermined frequency scheme. This apparatus which is tunable as quickly as the transmitter, includes two or more antenna tuning means tuned to different frequencies which are tuned to different frequencies and switched rapidly by the control unit.
    Type: Grant
    Filed: July 9, 1982
    Date of Patent: June 4, 1985
    Assignee: Rohde & Schwarz GmbH & Co., KG
    Inventors: Franz R. Huber, Axel Stark