Patents by Inventor Henk Bijl

Henk Bijl 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
    Patent number: 6066615
    Abstract: A tablet of compacted particulate detergent composition has an indentation (39) around a periphery of the face (37) of the tablet. The surface circumscribed by the indentation preferably has higher permeability and is rougher than the surface of the indentation (39) itself. Such a tablet can be made by a process in which a detergent composition is compacted in a mould by at least one die with an elastomeric surface layer (36) on an area which contacts the composition, which layer (36) is surrounded by a rigid rim (30) which forms the indentation (39).
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: May 23, 2000
    Assignee: Unilever Home & Personal Care USA division of conopco, Inc.
    Inventors: Henk Bijl, James William Gordon, Gert van Koppen, Marcel Van der Kraan, Jan Poorvliet