Patents by Inventor Peter Brocklehurst

Peter Brocklehurst 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).

  • Paint stripper compositions
    Patent number: 4643840
    Abstract: Alkaline paint stripper compositions contain either a fibrous material or a combination of a xanthan gum and hectorite clay so as to provide a peelable skin over a painted surface.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: February 17, 1987
    Assignee: Sterling Drug Inc.
    Inventors: Peter Brocklehurst, Angus S. Ferguson
  • Dry powder compositions for preparing paint strippers
    Patent number: 4502891
    Abstract: Alkaline paint stripper compositions contain either a fibrous material or a combination of a xanthan gum and hectorite clay so as to provide a pellable skin over a painted surface.
    Type: Grant
    Filed: October 6, 1983
    Date of Patent: March 5, 1985
    Assignee: Sterling Drug Inc.
    Inventors: Peter Brocklehurst, Angus S. Ferguson
  • Stable peroxide composition and method of preparation thereof
    Patent number: 4402853
    Abstract: A stable succinyl peroxide composition comprising in solid particulate form a mixture of succinyl peroxide, a water-soluble dehydrating agent which is unreactive to succinyl peroxide, e.g., magnesium or sodium sulfate, and water, the water being bound to the dehydrating agent as water of hydration; and a method of preparation thereof comprising mixing a paste of succinyl peroxide in water with a water soluble dehydrating agent, the dehydrating agent being mixed with the succinyl peroxide paste in an amount and for a time sufficient to bind all of the water in the paste and provide a dry mixture.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: September 6, 1983
    Assignee: Sterling Drug Inc.
    Inventors: Peter Brocklehurst, Angus S. Ferguson