Patents by Inventor Ronaldus Wilhelmus Westerhout

Ronaldus Wilhelmus Westerhout 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
    Publication number: 20030162680
    Abstract: The invention provides a tablet of a compacted particulate composition for use in fabric washing which contains detergent-active, detergency builder and other ingredients, characterized in that the tablet contains:
    Type: Application
    Filed: June 17, 2002
    Publication date: August 28, 2003
    Applicant: Unilever Home and Personal Care, Division of Conopco, Inc.
    Inventors: Mirjam Sta, Ronaldus Wilhelmus Westerhout
  • Detergent compositions
    Patent number: 6436889
    Abstract: A tablet of a compacted particulate composition for use in fabric washing contains detergent-active, detergency builder and other ingredients, characterized in that the tablet contains: (i) a smectite clay mineral; and (ii) a material with a water-solubility which exceeds 50 gm per 100 gm of water at 20° C., and (iii) 0.5 to 40% by weight of an anionic surfactant.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: August 20, 2002
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Mirjam Sta, Ronaldus Wilhelmus Westerhout
  • Detergent compositions
    Patent number: 6313080
    Abstract: A detergent tablet for fabric washing is compacted from particulate detergent composition(s) with a fabric conditioning agent present in one zone (20,26,36,40) of the tablet at a greater concentration than in another zone (22,24,28,30,42). The conditioning agent may be a softening agent in a zone or region which disintegrates later than another zone or region of the tablet.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: November 6, 2001
    Assignee: Unilever Home & Personal Care, USA division of Conopco, Inc.
    Inventors: Jelles Vincent Boskamp, Atze Jan van der Goot, Ronaldus Wilhelmus Westerhout