Patents by Inventor William D. Emery

William D. Emery 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: 5536441
    Abstract: A bleach catalyst composition in the form of non-friable composite granules comprising:i) a manganese complex catalyst being one of three defined formulae herein;ii) a water-soluble binding agent, preferably selected from soap/fatty acid mixtures, polyethylene glycols of molecular weight in the range 500 to 3000, tallow and coco ethanolamides, nonionic surfactants and mixtures thereof; andiii) an inert solid selected from zeolites, silicas, clays, alumina, titanium dioxide and mixtures thereof; and each granule having a pH within the range from 4.5 to 8.5.The granular, manganese complex-based bleach catalyst composition may be incorporated in detergent and/or bleaching compositions, with good resulting stability and homogeneity of distribution.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: July 16, 1996
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Andrew P. Chapple, Jayne E. Nation, William D. Emery, Hermien W. Plomp, Marten R. P. Van Vliet, Cornelis B. Donker, Clemens O. Monir
  • Patent number: 5209857
    Abstract: A detergent composition for washing and softening fabrics comprising at least one detergent active material and, as a fabric softening agent, a smectite clay mineral which is a 2:1 layer phyllosilicate possessing a lattice charge deficiency in the range of 0.2 to 0.4 g equivalents per half unit cell.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: May 11, 1993
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Ian R. Kenyon, Robin S. Heslam, William D. Emery, Hermes J. Murakami
  • Patent number: 5167852
    Abstract: Sensitive and/or chemically reactive detergent additives can be shaped in the form of spherical particles having the desirable properties of being non-friable, non-dusty and at the same time fast-dissolving. The process comprises the steps of treating a mixture comprising said detergent additive and a hydratable material with a polymeric material of high Tg in a high-speed mixer/granulator. A preferred detergent additive is a peroxyacid bleach precursor.
    Type: Grant
    Filed: October 24, 1990
    Date of Patent: December 1, 1992
    Assignee: Lever Brothers Company, Division of Conopco Inc.
    Inventors: William D. Emery, William J. Iley, Peter C. Knight