Patents by Inventor Michael Scheper

Michael Scheper 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).

  • Publication number: 20020039988
    Abstract: The present application relates to a method of softening soil deposited on a hard surface. The method comprises contacting a hard surface having soil with a composition having a soil softening additive incorporated into the composition. The compositions may be formulated at either high or low pH and preferred soil softening additives are amylase enzymes.
    Type: Application
    Filed: May 4, 2000
    Publication date: April 4, 2002
    Inventors: CHANDRIKA KASTURI, KRISTEN LYNNE MCKENZIE, WILLIAM MICHAEL SCHEPER, PETER ROBERT FOLEY
  • Patent number: 6365561
    Abstract: The present invention relates to detergent compositions containing low molecular weight organic diamines. More particularly, the invention is directed to detergent compositions for hand dishwashing which has improved grease removal performance and benefits in sudsing. The detergents of this invention also have improved low temperature stability properties and dissolution properties.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: April 2, 2002
    Assignee: Procter & Gamble Company
    Inventors: Phillip Kyle Vinson, Janice Lee Oglesby, Jeffrey John Scheibel, William Michael Scheper, Chandrika Kasturi, Kristen Lynne McKenzie, Kofi Ofosu-Asante, Joanna Margaret Clarke, Robert Owens
  • Patent number: 6326341
    Abstract: Automatic dishwashing detergent compositions comprising a mixed surfactant system comprising low cloud point nonionic surfactant and charged surfactant selected from anionic surfactants, zwitterionic surfactants, and mixtures thereof.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: December 4, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Kuntal Chatterjee, William Michael Scheper, Lynda Anne Speed, Graeme Duncan Cruickshank
  • Patent number: 6281181
    Abstract: Light-duty liquid or gel dishwashing detergent compositions that are especially useful for manual washing of heavily soiled dishware under conditions of low temperature and high hardness. Such compositions contain a surfactant system comprising a mid-hain branched surfactant. Preferably, the compositions also comprise a polyhydroxy fatty acid amide-based nonionic surfactant component, a detersive amount of magnesium or calcium, a suds booster which is preferably an amine oxide and an aqueous liquid carrier. The detergent compositions exhibit excellent phase stability at low temperatures and excellent mixing rates with water, even at low temperature and/or high water hardness.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: August 28, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Phillip Kyle Vinson, Thomas Anthony Cripe, William Michael Scheper, Robert Emerson Stidham, Daniel Stedman Connor
  • Patent number: 6207631
    Abstract: The present invention relates to liquid detergent compositions comprising polymeric suds volume and suds duration enhancers. These polymeric materials provide enhanced suds volume and suds duration during hand washing of dishware, flatware, and pots and pans. The present invention also relates to methods for providing detergent compositions which have enduring suds volume and suds retention when hand washing of said dishware items.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: March 27, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Chandrika Kasturi, Michael Gayle Schafer, Mark Robert Sivik, Bernard William Kluesener, William Michael Scheper
  • Patent number: 6119705
    Abstract: Automatic dishwashing detergent compositions comprising certain cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt chelated catalysts having the formula:[Co.sub.n L.sub.m X.sub.p ].sup.z Y.sub.z.Preferred automatic dishwashing compositions comprise amylase and/or protease enzymes. Included are methods for washing tableware in domestic automatic dishwashing appliances using the cobalt catalysts.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: September 19, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Edward Eugene Getty, William Michael Scheper, Alan Scott Goldstein
  • Patent number: 6069122
    Abstract: The present invention relates to detergent compositions containing low molecular weight organic diamines. More particularly, the invention is directed to detergent compositions for hand dishwashing which has improved grease removal performance and benefits in sudsing. The detergents of this invention also have improved low temperature stability properties and dissolution properties.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: May 30, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Phillip Kyle Vinson, Janice Lee Oglesby, Jeffrey John Scheibel, William Michael Scheper, Chandrika Kasturi, Kristen Lynne McKenzie, Kofi Ofosu-Asante, Joanna Margaret Clarke, Robert Owens
  • Patent number: 6034044
    Abstract: Automatic dishwashing detergent compositions comprising a mixed nonionic surfactant system comprising low cloud point and high cloud point nonionic surfactants.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: March 7, 2000
    Assignee: The Procter & Gamble Company
    Inventors: William Michael Scheper, Laura Lee Turner, Kuntal Chatterjee, Lynda Anne Speed, Graeme Duncan Cruickshank
  • Patent number: 6020294
    Abstract: Automatic dishwashing detergent compositions comprising certain cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt chelated catalysts having the formula:[Co.sub.n L.sub.m X.sub.p ].sup.z Y.sub.z.Preferred automatic dishwashing compositions comprise amylase and/or protease enzymes. Included are methods for washing tableware in domestic automatic dishwashing appliances using the cobalt catalysts.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: February 1, 2000
    Assignee: Procter & Gamble Company
    Inventors: Edward Eugene Getty, William Michael Scheper, Alan Scott Goldstein
  • Patent number: 6013613
    Abstract: Automatic dishwashing detergent compositions comprising a mixed nonionic surfactant system comprising low cloud point and high cloud point nonionic surfactants.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: January 11, 2000
    Assignee: The Procter & Gamble Company
    Inventors: William Michael Scheper, Laura Lee Turner, Kuntal Chatterjee
  • Patent number: 5968881
    Abstract: Automatic dishwashing detergent compositions comprising phosphate builder and metal-containing bleach catalyst, preferably catalysts containing manganese and/or selected from selected cobalt/ammonia catalysts. Preferred compositions comprise cobalt bleach catalyst having the formula:[Co(NH3).sub.n (M).sub.m (B).sub.b ]T.sub.ywherein cobalt is in the +3 oxidation state; n is 4 or 5 (preferably 5); M is one or more ligands coordinated to the cobalt by one site; B is a ligand coordinated to the cobalt by two sites; b is 0 or 1 (preferably 0); and when b=0, then m+n=6, and when b=1, then m=0 and n=4; and T is one or more appropriately selected counteranions present in a number y, wherein y is an integer to obtain a charge-balanced salt (preferably y is 1-3; most preferably 2 when T is a -1 charged anion); and wherein further the catalyst has a base hydrolysis rate constant of less than 0.23M.sup.-1 s.sup.-1 at 25.degree. C.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: October 19, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Donna Jean Haeggberg, William Michael Scheper
  • Patent number: 5962386
    Abstract: Automatic dishwashing detergent compositions comprising certain cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt bleach catalyst having the formula:?Co(NH.sub.3).sub.n (M).sub.m (B).sub.b !T.sub.ywherein cobalt is in the +3 oxidation state; n is 4 or 5 (preferably 5); M is one or more ligands coordinated to the cobalt by one site; m is 0, 1 or 2 (preferably 1); B is a ligand coordinated to the cobalt by two sites; b is 0 or 1 (preferably 0), and when b=0, then m+n=6, and when b=1, then m=0 and n=4; and T is one or more appropriately selected counteranions present in a number y, where y is an integer to obtain a charge-balanced salt (preferably y is 1 to 3; most preferably 2 when T is a -1 charged anion); and wherein further said catalyst has a base hydrolysis rate constant of less than 0.23M.sup.-1 s.sup.-1 (25.degree. C.).
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: October 5, 1999
    Assignee: The Procter & Gamble Company
    Inventors: William Michael Scheper, Christopher Mark Perkins
  • Patent number: 5939373
    Abstract: Automatic dishwashing detergent compositions comprising phosphate builder and metal-containing bleach catalyst, preferably catalysts containing manganese and/or selected from selected cobalt/ammonia catalysts. Preferred compositions comprise cobalt bleach catalyst having the formula:?Co(NH3).sub.n (M).sub.m (B).sub.b !T.sub.ywherein cobalt is in the +3 oxidation state; n is 4 or 5 (preferably 5); M is one or more ligands coordinated to the cobalt by one site; B is a ligand coordinated to the cobalt by two sites; b is 0 or 1 (preferably 0); and when b=0, then m+n 6, and when b=1, then m=0 and n=4; and T is one or more appropriately selected counteranions present in a number y, wherein y is an integer to obtain a charge-balanced salt (preferably y is 1-3; most preferably 2 when T is a -1 charged anion); and wherein further the catalyst has a base hydrolysis rate constant of less than 0.23M.sup.-1 s.sup.-1 at 25.degree. C. Preferred automatic dishwashing compositions further comprise amylase and/or protease.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: August 17, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Donna Jean Haeggberg, William Michael Scheper
  • Patent number: 5912218
    Abstract: Automatic dishwashing detergent compositions comprising a mixed surfactant system comprising low cloud point nonionic surfactant and charged surfactant selected from anionic surfactants, zwitterionic surfactants, and mixtures thereof
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: June 15, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Kuntal Chatterjee, William Michael Scheper
  • Patent number: 5904161
    Abstract: Cleaning compositions, particularly automatic dishwashing detergent compositions, comprising a stability-enhanced amylase and bleach-improving materials are provided. More specifically, the invention relates to granular automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits. The automatic dishwashing compositions comprise stability-enhanced amylase enzymes and one or more bleach-improving compounds, such as organic peroxides, quaternary substituted bleach activators, quaternary substituted peracids and manganese or iron bleach catalysts.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: May 18, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Saroj Rai, William Michael Scheper, Lucille Florence Taylor, Gregory Stephen Caravajal, James Charles Theophile Roger Burckett-St. Laurent, Kakumanu Pramod
  • Patent number: 5877134
    Abstract: Automatic dishwashing detergent compositions comprising a mixed nonionic surfactant system comprising low cloud point and high cloud point nonionic surfactants. The low cloud point nonionic surfactant has the formula:R.sub.1 O?CH.sub.2 CH(CH.sub.3)O!.sub.x ?CH.sub.2 CH.sub.2 O!.sub.y CH.sub.2 CH(OH)R.sub.2wherein R.sub.1 is a linear or branched, aliphatic hydrocarbon radical having from about 4 to about 18 carbon atoms; R.sub.2 is a linear or branched aliphatic hydrocarbon radical having from about 2 to about 26 carbon atoms; x is an integer having an average value of from 0.5 to about 1.5; and y is an integer having a value of least about 15. The high cloud point nonionic surfactant comprises an ethoxylated surfactant derived from the reaction of a monohydroxy alcohol containing from about 10 to about 16 carbon atoms, with from about 6 to about 15 moles of ethylene oxide per mole of alcohol on an average basis and having a hydrophile-lipophile balance value within the range of from about 12 to about 14.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: March 2, 1999
    Assignee: The Procter & Gamble Company
    Inventors: William Michael Scheper, Laura Lee Turner, Kuntal Chatterjee
  • Patent number: 5804542
    Abstract: Automatic dishwashing detergent compositions comprising certain cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt catalysts having the formula:?Co(NH.sub.3).sub.n (X).sub.m !T.sub.y.Preferred automatic dishwashing compositions comprise amylase and/or protease enzymes. Included are methods for washing tableware in domestic automatic dishwashing appliances using the cobalt catalysts.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: September 8, 1998
    Assignee: The Procter & Gamble Company
    Inventors: William Michael Scheper, Alan Scott Goldstein, Edward Eugene Getty
  • Patent number: 5798326
    Abstract: Automatic dishwashing detergent compositions comprising certain cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt (III) catalysts having the formula:Co?(NH.sub.3).sub.n M.sub.m B.sub.b T.sub.t Q.sub.q P.sub.p !Y.sub.yPreferred automatic dishwashing compositions comprise amylase and/or protease enzymes. Included are methods for washing tableware in domestic automatic dishwashing appliances using the cobalt catalysts.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: August 25, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Alan Scott Goldstein, Edward Eugene Getty, William Michael Scheper
  • Patent number: 5705464
    Abstract: Automatic dishwashing detergent compositions comprising certain cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt bleach catalyst having the formula:?Co(NH.sub.3).sub.n (M).sub.m (B).sub.b !T.sub.ywherein cobalt is in the +3 oxidation state; n is 4 or 5 (preferably 5); M is one or more ligands coordinated to the cobalt by one site; m is 0, 1 or 2 (preferably 1); B is a ligand coordinated to the cobalt by two sites; b is 0 or 1 (preferably 0), and when b=0, then m+n=6, and when b=l, then m=0 and n=4; and T is one or more appropriately selected counteranions present in a number y, where y is an integer to obtain a charge-balanced salt (preferably y is 1 to 3; most preferably 2 when T is a -1 charged anion); and wherein further said catalyst has a base hydrolysis rate constant of less than 0.23 M.sup.-1 s.sup.-1 (25.degree. C.).
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: January 6, 1998
    Assignee: The Procter & Gamble Company
    Inventors: William Michael Scheper, Christopher Mark Perkins
  • Patent number: 5703030
    Abstract: Bleach compositions comprising certain carboxylate-containing cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents and laundry compositions which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt catalysts having the formula:?Co(NH.sub.3).sub.5 M!T.sub.ywherein cobalt is in the +3 oxidation state; and M is a substituted and unsubstituted C.sub.1 -C.sub.30 carboxylate-containing ligand having the formula RC(O)O--.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: December 30, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Christopher Mark Perkins, William Michael Scheper