Patents by Inventor Marcel J. J. De Cupere

Marcel J. J. De Cupere 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).

  • Foam control agents in granular form
    Patent number: 5540856
    Abstract: The present invention provides stable, free-flowing foam-control agent in granular form, comprising a silicone antifoam compound, a carrier material, an organic coating material, characterized in, that they contain a crystalline or amorphous aluminosilicate, at a weight ratio with the silicone antifoam compound of 1/5 to 2/1.The present invention also provides a method to make such agents, and detergent compositions containing said foam control agent.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 30, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Jean Wevers, Marcel J. J. De Cupere
  • Stable granular foam control agent comprising a silicone antifoam compound and glycerol
    Patent number: 5456855
    Abstract: The present invention provides stable, free-flowing foam-control agent in granular form, comprising a silicone antifoam compound, a carrier material, an organic coating material, characterized in, that they contain glycerol, at a weight ratio with the silicone antifoam compound of 1:4 to 2:1. The present invention also provides detergent compositions containing said foam control agent.
    Type: Grant
    Filed: June 15, 1993
    Date of Patent: October 10, 1995
    Assignee: The Procter & Gamble Company
    Inventor: Marcel J. J. De Cupere