Patents by Inventor Duke Johnston

Duke Johnston 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).

  • Method and device for attracting and collecting earthworms
    Patent number: 9131670
    Abstract: An earthworm collecting device that is highly effective in causing earthworms to surface from their holes during the day time or at night and come to the surface. The device generates a rasping noise and a series of vibrations that resonate through the ground. These resonating vibrations cause the earthworms to surface which then allows for easy and rapid collection.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: September 15, 2015
    Inventor: Duke Johnston
  • Method and Device for Attracting and Collecting Earthworms
    Publication number: 20130269616
    Abstract: An earthworm collecting device that is highly effective in causing earthworms to surface from their holes during the day time or at night and come to the surface. The device generates a rasping noise and a series of vibrations that resonate through the ground. These resonating vibrations cause the earthworms to surface which then allows for easy and rapid collection.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 17, 2013
    Inventor: Duke Johnston