Patents by Inventor John Charles Howson

John Charles Howson 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).

  • Contact adhesives
    Patent number: 3951722
    Abstract: A one-part thixotropic contact adhesive composition comprises a polychloroprene in an organic liquid which is a solvent and/or dispersing medium for it, and from 1 to 10 parts by weight, per 100 parts by weight of the composition, of a thixotropic agent being a solid saturated hydroxy-carboxylic acid or a solid ester of a saturated hydroxy-carboxylic acid.
    Type: Grant
    Filed: November 9, 1973
    Date of Patent: April 20, 1976
    Inventors: John Charles Howson, Thomas Emsley Brooke