Patents by Inventor Peter J. Powers

Peter J. Powers 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).

  • Detergent compositions
    Patent number: 4299716
    Abstract: The invention relates to a detergent composition in powder or bar form containing a surfactant, an alkali metal carbonate and a low level (1 to 5%) of orthophosphate, other phosphates being maintained at a level below 5%. A peroxygen bleach and other conventional additives are optionally present. The compositions are suitable for washing fabrics in developing countries and are suitable as low cost products elsewhere.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: November 10, 1981
    Assignee: Lever Brothers Company
    Inventors: John S. Cottrell, Peter J. Powers
  • Detergent compositions
    Patent number: 4299717
    Abstract: The invention relates to a detergent composition in powder or bar form containing a surfactant, an alkali metal carbonate and a low level (1 to 12%) of pyrophosphate, other phosphates being maintained at a level below 5%. A peroxygen bleach and other conventional additives are optionally present. The compositions are suitable for washing fabrics in developing countries and are suitable for low cost products elsewhere.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: November 10, 1981
    Assignee: Lever Brothers Company
    Inventors: John S. Cottrell, Peter J. Powers