Patents by Inventor Raymond Liddle

Raymond Liddle 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).

  • Composition and methods for protecting and rendering non-porous surfaces water and soil repellent
    Patent number: 3998643
    Abstract: Water and soil repellent compositions comprising the product of the admixture of an alkylpolysiloxane, a mineral acid selected from the group consisting of sulfuric acid, phosphoric acid, aromatic sulfonic acids, aliphatic sulfonic acids and hydrochloric acid, and hydrofluoric acid are provided. Methods for preparing the same and for protecting and rendering non-porous surfaces water and soil repellent employing the same are also provided.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: December 21, 1976
    Assignee: General Electric Company
    Inventor: Raymond Liddle