Patents by Inventor Jefrey S. Wigdahl

Jefrey S. Wigdahl 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).

  • Agricultural moisture sensor with co-planar electrodes
    Patent number: 9494538
    Abstract: A moisture sensor that has a drive electrode and a separate sense electrode is described. Both electrodes have surfaces that face the sensed material and the surfaces are co-planar. The drive electrode receives an excitation signal and generates an electric field that produces a current in the sense electrode. The current is indicative of moisture in the sensed material.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: November 15, 2016
    Assignee: Deere & Company
    Inventors: Andrze J Kozicki, Michael Tuchscherer, Michael L. Rhodes, Jefrey S. Wigdahl, James J. Phelan, Brian J. Booth, Jerry B. Hall