Patents by Inventor Rick Witham

Rick Witham 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).

  • System for removing debris from a harvested tree crop product
    Patent number: 8683918
    Abstract: A system for removing debris from tree crop product utilizes a plurality of screening and transport rollers which have disk-shaped members having projections that are curved and extend rearwardly in a direction opposed to the direction of rotation of the rollers, at least a portion of the projections of adjacent rollers overlapping to form voids.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: April 1, 2014
    Inventors: Rick Witham, Ed Witham, Jr.