Patents by Inventor Roger Joseph Anna Janssen

Roger Joseph Anna Janssen 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).

  • Water-softening and detergent compositions containing partially hydrated Na acetate
    Patent number: 6310028
    Abstract: The speed of disintegration of tablets containing a water-softening agent, especially water-insoluble, water-softening agent intended as detergency builder for fabric washing is enhanced by incorporating partially hydrated sodium acetate alone or jointly with sodium citrate dihydrate and/or crystallised sodium acetate trihydrate.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: October 30, 2001
    Assignee: Unilever Home & Personal Care, USA, division of Conopco, Inc.
    Inventor: Roger Joseph Anna Janssen
  • Water-softening and detergent compositions
    Patent number: 6153574
    Abstract: The speed of disintegration of tablets containing a water-softening agent, especially water-insoluble, water-softening agent intended as detergency builder for fabric washing is enhanced by incorporating spray-dried partially hydrated sodium acetate alone or jointly with sodium citrate dihydrate and/or crystallized sodium acetate trihydrate.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: November 28, 2000
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventor: Roger Joseph Anna Janssen