Patents by Inventor Josef Fenk

Josef Fenk 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).

  • Tunable microwave oscillator
    Patent number: 4249262
    Abstract: A tunable microwave oscillator including a transistor with a tuning diode which form an oscillating circuit particularly for use in television tuners and which does not require an inductor. A novel combination of an oscillator and mixer is also provided and the oscillator and mixer are designed to cover broad tuning ranges.
    Type: Grant
    Filed: October 25, 1978
    Date of Patent: February 3, 1981
    Assignee: Siemens Aktiengesellschaft
    Inventor: Josef Fenk
  • Tunable microwave oscillator
    Patent number: 4150344
    Abstract: A tunable microwave oscillator including a transistor with a tuning diode which form an oscillating circuit particularly for use in television tuners and which does not require an inductor. A novel combination of an oscillator and mixer is also provided and the oscillator and mixer are designed to cover broad tuning ranges.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: April 17, 1979
    Assignee: Siemens Aktiengesellschaft
    Inventor: Josef Fenk