Patents by Inventor Diederik H. Nugteren

Diederik H. Nugteren 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).

  • Skin treatment composition
    Patent number: 5342976
    Abstract: A composition suitable for topical application to human skin comprises, in addition to a suitable vehicle an active ingredient which can control skin barrier functions. The active ingredient is (a) a long chain .omega.-hydroxy fatty acid or a carboxy-substituted derivative, (b) an hydroxy-or epoxy-derivative of an essential fatty acid or an ester formed between (a) and (b). Certain novel compounds of structures (a), (b) and (a)(b) esters are also claimed.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: August 30, 1994
    Assignee: Elizabeth Arden Co., Division of Conopco, Inc.
    Inventors: Paul A. Bowser, Albert Froling, Lammert Heslinga, Udo M. T. Houtsmuller, Diederik H. Nugteren, Hendrik J. J. Pabon, Colin Prottey
  • Skin treatment composition
    Patent number: 5202357
    Abstract: A composition suitable for topical application to human skin comprises, in addition to a suitable vehicle an active ingredient which can control skin barrier functions. The active ingredient is (a) a long chain .omega.-hydroxy fatty acid or a carboxy-substituted derivative, (b) an hydroxy- or epoxy-derivative of an essential fatty acid or an ester formed between (a) and (b). Certain novel compounds of structures (a), (b) and (a)(b) esters are also claimed.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: April 13, 1993
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Paul A. Bowser, Albert Froling, Lammert Heslinga, Udo M. T. Houtsmuller, Diederik H. Nugteren, Hendrik J. J. Pabon, Colin Prottey
  • Skin treatment composition
    Patent number: 4950688
    Abstract: A composition suitable for topical application to human skin comprises, in addition to a suitable vehicle and a perfume, an active ingredient which can control skin barrier functions. The active ingredient is (a) a long chain .omega.-hydroxy fatty acid or a carboxy-substituted derivative, (b) an hydroxy- or epoxy-derivative of an essential fatty acid or an ester formed between (a) and (b). Certain novel compounds of structures (a), (b) and (a)(b) esters are also claimed.
    Type: Grant
    Filed: June 16, 1983
    Date of Patent: August 21, 1990
    Assignee: Conopco, Inc.
    Inventors: Paul A. Bowser, Albert Froling, Lammert Heslinga, Udo M. T. Houtsmuller, Diederik H. Nugteren, Hendrik J. J. Pabon, Colin Prottey
  • Prostaglandins
    Patent number: 4163108
    Abstract: .omega.-Nor and .omega.-homo prostaglandins E having blood platelet aggregation-inhibiting activity are prepared by enzymatic synthesis fron nonadeca- and henicosa- -8c, 11c,14c-trienoic acids.
    Type: Grant
    Filed: March 21, 1973
    Date of Patent: July 31, 1979
    Assignee: Lever Brothers Company
    Inventors: Roelof K. Beerthuis, David A. VAN Dorp, Diederik H. Nugteren