Patents by Inventor John W. Gettens

John W. Gettens 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).

  • Passive activity monitor for livestock
    Patent number: 4618861
    Abstract: An estrus detection system using a transponder mounted to an animal and including a motion sensor. The motion sensor produces a series of pulses as a function of movement. A counting circuit is energized by the sensor. A storage circuit retains the count together with an identification code unique to the animal. The transponder is interrogated to receive data and such is processed to determine estrus.
    Type: Grant
    Filed: March 20, 1985
    Date of Patent: October 21, 1986
    Assignee: Cornell Research Foundation, Inc.
    Inventors: John W. Gettens, Nick A. Sigrimis, Norman R. Scott