Patents by Inventor David Robert Guthrie

David Robert Guthrie 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).

  • MATERIAL AND METHOD FOR REMEDIATION OF A SITE CONTAMINATED BY AN OIL SPILL
    Publication number: 20230201798
    Abstract: Disclosed herein is an apparatus (10) for remediation of a site contaminated by an oil spill. The apparatus (10) comprises a porous capsule (12) encapsulating material (14) for sorbing oil. The material (14) comprises granules of an at least semi-open cell polymeric foam, the granules being less than 10cm3 in size. Ingredients from which the polymeric foam is formed comprise acrylonitrile butadiene rubber as a major constituent thereof by weight.
    Type: Application
    Filed: May 27, 2021
    Publication date: June 29, 2023
    Inventors: David Robert Guthrie, Ernest Beresford Peter Hall