Patents by Inventor James C. T. R. Burckett St. Laurent

James C. T. R. Burckett St. Laurent 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: 6162778
    Abstract: Liquid and gel dishwashing detergent compositions which exhibit good cleaning performance and desirable skin feel and rinsability aesthetics are disclosed. Such compositions comprise detergent surfactants, a nonionic surfactant- and hydrotrope-containing skin feel/rinsability enhancing system and small amounts of selected skin conditioning protease enzymes. Such compositions additionally will preferably contain suds boosters and divalent metal cations.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: December 19, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Kirsten Louise McKillop, Peter Robert Foley, Paul Jerome Crabtree, James C. T. R. Burckett-St. Laurent, Joanna Margaret Clarke, Suchareeta Patil
  • Patent number: 5658867
    Abstract: Cleaning compositions comprise a builder material which has substantially improved performance and is significantly less expensive than previous builders. The builder material has improved performance in that it unexpectedly has a high calcium ion exchange capacity and rate, and is easy to handle, process and disperse in washing solutions. The cleaning compositions contain a builder material having at least one crystalline microstructure including a carbonate anion, calcium cation and at least one water-soluble cation, wherein the builder has a particle size diameter within selected ranges for optimal performance. The microstructure should have a sufficient number of anions and cations so as to be "balanced" or "neutral" in charge.
    Type: Grant
    Filed: March 13, 1996
    Date of Patent: August 19, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Eugene Joseph Pancheri, James C. T. R. Burckett-St. Laurent
  • Patent number: 5635104
    Abstract: Improved aqueous bleaching solutions formed by reacting a bleach activator having a perhydrolysis selectivity coefficient of 5 or greater and a low-pH perhydrolysis-efficiency coefficient of 0.15 or higher are provided. More specifically, the invention relates to bleaching solutions which provide enhanced cleaning/bleaching benefits though the selection of bleach activators at mildly alkaline washing solutions or in the presence of reduced-levels of hydrogen peroxide.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: June 3, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Kevin L. Kott, Alan D. Willey, Gregory S. Miracle, James C. T. R. Burckett-St. Laurent
  • Patent number: 5599781
    Abstract: Detergents, especially automatic dishwashing detergents, comprising a stain removal system especially adapted for removal of tea stains, coffee stains and the like. The compositions comprise monopersulfate bleach such as 2KHSO.sub.5 .cndot.KHSO.sub.4 .cndot.K.sub.2 SO.sub.4 in combination with perborate or percarbonate at specific ratios, in combination with certain cationic or quaternary-substituted bleach activators.
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: February 4, 1997
    Inventors: Donna J. Haeggberg, Lucille F. Taylor, Mark R. Sivik, James C. T. R. Burckett-St. Laurent
  • Patent number: 5576282
    Abstract: Bleach boosters comprising zwitterionic imines and anionic imine polyions having a net negative charge are disclosed. The bleach boosters increase bleaching effectiveness in lower temperature solutions and demonstrate superior color safety profiles. The bleach boosters are ideally suited for inclusion into bleaching compositions including those with detersive surfactants and enzymes. Also provided is a laundry additive product including zwitterionic imines and anionic imine polyions with a net negative charge as bleach boosters. A method for laundering a fabric employing the bleach boosters of the present invention is also disclosed.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: November 19, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Gregory S. Miracle, Michael E. Burns, Patti J. Kellett, James C. T. R. Burckett-St. Laurent
  • Patent number: 5560748
    Abstract: Laundry and cleaning compositions which comprise large pore size redox catalysts.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: October 1, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Athanasios Surutzidis, Robert Y. Pan, Gregory S. Caravajal, James C. T. R. Burckett-St. Laurent
  • Patent number: 5559089
    Abstract: Automatic dishwashing detergents are provided in convenient, compact form without chlorine bleaches or phosphate builders. Thus, monopersulfate bleach such as 2KHSO.sub.5.KHSO.sub.4.K.sub.2 SO.sub.4 is used in combination with protease or amylase enzymes and acrylate organic dispersants to provide good cleaning of tableware. Weak builders such as citrate and pH-adjusting agents such as carbonate, bicarbonate and silicate can be present in the composition.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: September 24, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Frederick A. Hartman, Ronald J. Rice, James C. T. R. Burckett-St. Laurent, Lucille F. Taylor, Donna J. Haeggberg
  • Patent number: 5520835
    Abstract: Improved detergent compositions, especially granular automatic dishwashing detergents, comprising multiquaternary bleach activators are provided. The bleach activators contain multiple quaternary nitrogen groups, preferably at least three such groups and preferably have at least one quaternary nitrogen group in the peracid-forming portion of the bleach activator as well as at least one quaternary nitrogen group in the leaving-group portion.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: May 28, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Mark R. Sivik, Lucille F. Taylor, James C. T. R. Burckett-St. Laurent
  • Patent number: 4806253
    Abstract: Fabric softening is provided by water-soluble di-c.sub.6-10 quaternary ammonium salts and clay. Through-the-wash fabric softening is achieved concurrently with fabric cleaning by means of clays and water-soluble quaternaries. Compositions and sheet-form articles embodying soluble quaternary softeners are described.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: February 21, 1989
    Assignee: The Procter & Gamble Company
    Inventors: James C. T. R. Burckett St. Laurent, Alfred Busch
  • Patent number: 4578200
    Abstract: Copolymers of maleic anhydride and vinyl ethers are derivatized by C.sub.8-20 alkyl amines to form alkyl amide-substituted copolymers that exhibit fiber and fabric softening properties. The derivatized copolymers are formulated in a variety of laundry and shampoo compositions.
    Type: Grant
    Filed: November 29, 1984
    Date of Patent: March 25, 1986
    Assignee: The Procter & Gamble Company
    Inventors: James C. T. R. Burckett St. Laurent, Alfred Busch