Patents by Inventor Jonathan L. Stewart

Jonathan L. Stewart 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).

  • Tree surround for watering trees and bushes on sloped hillsides
    Patent number: 10004181
    Abstract: A water-retaining enclosure for surrounding trees and bushes and holding water, on flat or sloped hillsides. The enclosure is made of a resilient, polymeric material, such as wood/polymer composite. The bottom edge of the enclosure can have a sharpened edge or sawteeth for cutting into the soil. The upper edges can be tapered. The ends can be joined together to make a 360° ring using a watertight joint, or left open to form a 270° (¾) circle. The joint can utilize an elastomeric seal, finned connector, mating conical surfaces, interlocking flanges, or an interference fit to make it watertight.
    Type: Grant
    Filed: October 31, 2015
    Date of Patent: June 26, 2018
    Inventors: Jonathan L. Stewart, Elaine A. Hart
  • TREE SURROUND FOR WATERING TREES AND BUSHES ON SLOPED HILLSIDES
    Publication number: 20170118920
    Abstract: A water-retaining enclosure for surrounding trees and bushes and holding water, on flat or sloped hillsides. The enclosure is made of a resilient, polymeric material, such as wood/polymer composite. The bottom edge of the enclosure can have a sharpened edge or sawteeth for cutting into the soil. The upper edges can be tapered. The ends can be joined together to make a 360° ring using a watertight joint, or left open to form a 270° (¾) circle. The joint can utilize an elastomeric seal, finned connector, mating conical surfaces, interlocking flanges, or an interference fit to make it watertight.
    Type: Application
    Filed: October 31, 2015
    Publication date: May 4, 2017
    Inventors: Jonathan L. Stewart, Elaine A. Hart