Patents by Inventor Margaret Coyle-Rees

Margaret Coyle-Rees 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).

  • Stabilized acidic chlorine bleach composition and method of use
    Patent number: 6162371
    Abstract: The composition of this invention is a stabilized acidic bleaching composition comprising an aqueous solution of a source of source of unipositive chlorine ion, a chlorine stabilizing agent, and an acidic buffer to stabilize the pH of the bleaching composition in the range from about 2 to 6.5, wherein the chlorine stabilizing agent and the source of source of unipositive chlorine ion are in a molar ratio of greater than about 1:1. Methods are described for removal of lime scale from a hard surface controlling microbial activity as well as reducing malodor by applying the composition of this invention.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: December 19, 2000
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Wayne M. Rees, Debra S. Hilgers, Margaret Coyle-Rees, Timothy Moodycliffe
  • Acidic bleaching solution, method of preparation and a bleaching system for forming the same
    Patent number: 5972239
    Abstract: An acidic bleaching solution formed from the admixture of a first aqueous solution containing a chlorine deactivating agent and a second aqueous solution containing a hypochlorite salt is disclosed. Also disclosed is a bleaching system for forming the acidic bleaching solution, as well as a method of preparing the acidic bleaching solution. The acidic bleaching solution advantageously generates little or no chlorine gas while being a particularly effective cleaner for removing soapscum, limescale, mold and mildew from treated surfaces.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: October 26, 1999
    Assignee: S. C. Johnson & Son, Inc.
    Inventor: Margaret Coyle-Rees
  • Acidic bleaching solution, method of preparation and a bleaching system for forming the same
    Patent number: 5911909
    Abstract: An acidic bleaching solution formed from the admixture of a first aqueous solution containing a chlorine deactivating agent and a second aqueous solution containing a hypochlorite salt is disclosed. Also disclosed is a bleaching system for forming the acidic bleaching solution, as well as a method of preparing the acidic bleaching solution. The acidic bleaching solution advantageously generates little or no chlorine gas while being a particularly effective cleaner for removing soapscum, limescale, mold and mildew from treated surfaces.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: June 15, 1999
    Assignee: S. C. Johnson & Son, Inc.
    Inventor: Margaret Coyle-Rees