Patents by Inventor Douglas Hiller Crain

Douglas Hiller Crain 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).

  • Pasturing system
    Patent number: 11406082
    Abstract: Systems are disclosed for pasturing livestock on an industrial scale, including for instance poultry.
    Type: Grant
    Filed: September 7, 2019
    Date of Patent: August 9, 2022
    Inventor: Douglas Hiller Crain
  • Pasturing System
    Publication number: 20210029960
    Abstract: Systems are disclosed for pasturing livestock on an industrial scale, including for instance poultry.
    Type: Application
    Filed: September 7, 2019
    Publication date: February 4, 2021
    Inventor: Douglas Hiller Crain