Patents by Inventor Doug Stevens

Doug Stevens 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).

  • Calf creep feeder
    Patent number: 10881076
    Abstract: A calf creep feeder includes a panel fence positioned at each side of a feed enclosure. Each of the panel fences are selectively movable between a lower creep feeder position to an upper stowed position. A pair of torsion springs are secured to each of the panel fences to assist in raising the panel fences from their lower creep feeder positions to its upper stowed position.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: January 5, 2021
    Inventors: Doug Stevens, Scott Stevens
  • Portable feed mill apparatus
    Patent number: 9757734
    Abstract: A portable feed mill machine having a plurality of spaced-apart feed mills positioned on a wheeled frame such as a trailer. Any one of the feed mills may be taken out of operation for repair without the other feed mills being taken out of operation. The machine may have a plurality of mechanized devices rather than the feed mills.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: September 12, 2017
    Assignee: GLOBAL EQUIPMENT COMPANY INC.
    Inventors: Doug Stevens, Scott Stevens, Mark Penlerick, Dale Kumpf
  • Calf creep feeder
    Patent number: 9693534
    Abstract: A calf creep feeder includes a panel fence positioned at each side of a feed enclosure. Each of the panel fences are selectively movable between a lower creep feeder position to an upper stowed position. At least one coil spring is secured to each of the panel fences to assist in raising the panel fence from its lower creep feeder position to its upper stowed position.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: July 4, 2017
    Assignee: GLOBAL EQUIPMENT COMPANY, INC.
    Inventors: Doug Stevens, Scott Stevens