Patents by Inventor Marcel Belt

Marcel Belt 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).

  • Patent number: 6213409
    Abstract: Described is a time release fragrance sachet for air freshening, particularly for use in clothing storage cabinets. The sachets comprise a container fabricated from a substance either sufficiently porous for perfumes to pass therethrough or having openings capable of permitting fragrances to pass through the walls thereof. The sachets each contain thermoplastic particles which have contained in the interstices thereof fragrance materials. The polymer particles can be foamed particles produced using chemical blowing agents or direct gas extrusion processes. Also described are methods for fabricating such sachets and methods of using same.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: April 10, 2001
    Assignees: International Flavors & Fragances Inc., Unilever Patent Holdings B.V.
    Inventors: Craig B. Warren, John Ramsbotham, Marcel Belt
  • Patent number: D501606
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: February 8, 2005
    Assignee: Reckitt Benckiser Inc.
    Inventors: Marcel Belt, Leonard Spitzer, John Eugene Studer
  • Patent number: D515319
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: February 21, 2006
    Assignees: Reckitt Benckiser (UK) Limited
    Inventors: Charles Ashley, Marcel Belt, Leonard Spitzer, John Eugene Studer
  • Patent number: D493994
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: August 10, 2004
    Assignee: Reckitt Benckiser Inc.
    Inventors: Marcel Belt, Leonard Spitzer, John Eugene Studer
  • Patent number: D498057
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: November 9, 2004
    Assignee: Reckitt Benckiser Inc.
    Inventors: Charles Ashley, Marcel Belt, Ian Corkhill, Leonard Spitzer, John Eugene Studer