Patents Represented by Attorney, Agent or Law Firm Marianne Dressman
  • Patent number: 6384011
    Abstract: Compositions and methods which utilize certain cellulosic based polymer or oligomer materials as fabric treatment agents that can impart fabric appearance and integrity benefits to fabrics and textiles laundered in washing solutions which contain such materials.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: May 7, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Jennifer Ann Leupin, Eugene Paul Gosselink
  • Patent number: 6380143
    Abstract: A detergent composition, having a selected surfactant system for improved performance, especially under high water hardness and low temperature wash water conditions is disclosed. The detergent composition includes a mid-chain branched primary alkyl sulfate surfactant in combination with a linear alkylbenzene sulfonate surfactant, and linear alkyl sulfate surfactant at optimally selected relative proportions. Additionally, the detergent composition contains up to about 5% of an alkyl ethoxylated sulfate surfactant and up to about 5% of a nonionic surfactant while unexpectedly having improved performance with such relatively low levels of a nonionic surfactant.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: April 30, 2002
    Inventors: Frank Andrej Kvietok, Gabor Heltovics, Rinko Katsuda, Kenneth William Willman
  • Patent number: 6380144
    Abstract: Detergent compositions which comprise an anionic surfactant, a cationic surfactant and at least 13% perborate bleach contain citric acid and an alkali which react, in-use, to form a gas, thereby dispersing the perborate in a laundry liquor.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: April 30, 2002
    Assignee: The Procter & Gamble Company
    Inventor: Gerard Marcel Bailley
  • Patent number: 6376454
    Abstract: Coatings are applied to particulate detergent components or compositions to improve free-flow properties, improve dispensing and avoid dust formation. This is achieved by a two-step coating process, wherein the first coating step comprises mixing the detergent composition or component with a finely divided particulate material which is preferably aluminosilicate, and the second coating step comprises applying a coating agent. Suitable coating agents for the second step comprise from 5% to 95% by weight of cellulosic polymer; from 5% to 95%, by weight of sugar; and optionally, from 0% to 30% by weight of plasticizer.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: April 23, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Markus Eggersmann, Zoƫ McKee, Koen Mariette Albert Schamp
  • Patent number: 6362151
    Abstract: A granular detergent composition containing a secondary (2,3) alkyl sulfate surfactant and a bleach/bleach activator system which has improved cleaning performance is provided. The detergent composition comprises: (a) from about 1% to about 40% of a secondary (2,3) alkyl sulfate surfactant; (b) from about 0.005% to about 5% of an enzyme; (c) from about 0.5% to about 20% of a peroxygen bleaching agent; and (d) from about 0.5% to about 20% of a bleach activator. The peroxygen bleaching compound and the bleach activator are in a molar ratio from about 1:1 to about 9:1. The detergent composition is stable, exhibits superior cleaning and contains a more biodegradable surfactant.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: March 26, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Todd Edmund Wichmann, Edward Eugene Getty
  • Patent number: 6358902
    Abstract: A detergent tablet which contains a bleach activator is disclosed. The bleach activator is in particulate form and has a particle size in a range of from about 100 microns to about 4000 microns. The bleach activator is present in a range of from about 0.1% to about 15% by weight of the detergent tablet.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: March 19, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Adrian John Waynforth Angell, Les Charles Zorb
  • Patent number: 6355607
    Abstract: A tablet comprising a combination of a means for providing effervescency upon contact with water, as well as a soluble salt selected from the group consisting of acetate, urea, and mixtures thereof is disclosed. The means for providing effervescence upon contact with water preferably comprises citric acid and a carbonate salt, such as a bicarbonate salt. Also disclosed is a process for making tablets according to the present invention.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: March 12, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Sonia Rahman, Paul Irma Albertus Van Dijk
  • Patent number: 6313086
    Abstract: Low density detergent compositions, containing sulfate and an acidic dispersing aid combined with an alkaline source, which are capable of reacting together to produce a gas, are suitable for use in laundry washing methods.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: November 6, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Stuart Clive Askew, Graham Alexander Sorrie
  • Patent number: 6300302
    Abstract: The present invention relates to a substantially anhydrous effervescent particle, having an average particle size of from 75 microns to 2 cm, comprising an anhydrous particle core, which comprises one or more components of an effervescence system intimately mixed with a substantially anhydrous stabilizing agent.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: October 9, 2001
    Assignee: The Procter & Gamble
    Inventors: Alan Thomas Brooker, Stephen Wayne Heinzman, Barry Thomas Ingram, Gerard Marcel Baillely, Francisco Ramon Figueroa
  • Patent number: 6294513
    Abstract: A process for making detergent agglomerates in which a high active surfactant paste containing mid-chain branched alkyl sulfate surfactant and a detergent builder are agglomerated together is disclosed. The process entails maintaining the high active surfactant paste in highly stable, pumpable and transportable form over an extended period of time. In this way the process facilitates multi-locational, large-scale manufacture of modern compact detergent products. In particular, the high active surfactant paste can be manufactured in one facility, and thereafter, stored and transported to a remote facility for further processing in to the finished detergent agglomerates.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: September 25, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Michael Chris Jensen, Gayle Elizabeth Culver
  • Patent number: 6294512
    Abstract: Detergent compositions contain sticky particles with at least 45% by weight of a sticky surfactant and non-sticky particles with less than about 1% by weight of sticky surfactant. The particles are further characterized by their size ranges and bulk densities. Compositions containing potassium ions are described. Dissolution of the compositions in aqueous media is optimized.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: September 25, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Paul R Mort, III, Kevin Todd Norwood
  • Patent number: 6288016
    Abstract: Granular detergent compositions are prepared by an agglomeration process and impregnated with a water-insoluble disintegrant to improve water solubility. Laundry detergent compositions are described.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: September 11, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Ganapathy Venkata Ramanan, Noe Ongcoy Hidalgo, Rinko Katsuda, Tomotaka Inoue
  • Patent number: 6281188
    Abstract: A non-tower process for preparing a granular detergent composition having a low density of less than 600 g/l is provided. The process comprises the steps of: (a) mixing an anionic surfactant paste comprising from about 35% to about 85% anionic surfactant and from about 15% to about 65% water with a sufficient amount of a particulate water absorbing material to form a solid mass having a penetration value of from about 75 gf to about 4,000 gf, then (b) agglomerating the solid mass from step (a) and an amount of one or more other detergent ingredients in a mixer so as to produce agglomerates having an anionic surfactant content of from about 12% to about 60%.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: August 28, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Manivanan Kandasamy, Yuji Nakamura
  • Patent number: 6251846
    Abstract: Detergent compositions and fabric conditioning compositions which utilize certain anionically modified, oxidized cyclic amine based polymers, oligomers or copolymer materials. These anionically modified, cyclic amine based polymers, oilgomers or copolymers materials can impart fabric appearance and integrity benefits to fabrics and textiles laundered in washing solutions which contain such materials.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: June 26, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Rajan Keshav Panandiker, Sherri Lynn Randall, Eugene Paul Gosselink, William Conrad Wertz, Soren Hildebrandt, Elisabeth Kappes, Dieter Boeckh
  • Patent number: 6245731
    Abstract: The combination of packaging system comprising re-closing means with a stack of tablets (1) containing a bleaching agent unstable in a moisture environment, characterized in that the packaging device has a Moisture Vapor Transfer Rate of less than 20 g/m2/day measured at 40° C. and 75% eRH for avoiding ingress of water is disclosed. The packaging system may also have a micro-hole to allow gas release.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: June 12, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Bernard Cossec, Jacky Pierre Duquet, Gregory Bruce Huntington
  • Patent number: 6232284
    Abstract: The present invention relates to tablets comprising a core and a coating, the core being formed by compressing a particulate material, the particulate material comprising surfactant and detergent builder, and the coating comprising a material, or mixture of materials, such as a fatty alcohol, which is substantially insoluble in water at 25° C. The tablets are provided with means, such as effervescent agents, which aid in their disintegration in wash liquors.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: May 15, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Paul Irma Albertus Van Dijk, Jose Luis Vega
  • Patent number: 6232282
    Abstract: A detergent composition containing a mixture of linear alkybenzene sulfonate surfactant and mid-chain branched surfactant and an electrolyte is disclosed. The detergent composition includes a mid-chain branched primary alkyl sulfate surfactant and an electrolyte capable of increasing the ionic strength of the compositions resulting in improved performance, especially under low water temperature wash conditions. Typical electrolytes include sodium chloride, magnesium sulfate, calcium carbonate and the like.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: May 15, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Frank Andrej Kvietok, Gabor Heltovics, Rinko Katsuda, Phillip Kyle Vinson, Robert Allen Godfroid
  • Patent number: 6228828
    Abstract: Detergent compositions and fabric conditioning compositions which utilize certain anionically modified, oxidized cyclic amine based polymers, oligomers or copolymer materials. These anionically modified, cyclic amine based polymers, oilgomers or copolymers materials can impart fabric appearance and integrity benefits to fabrics and textiles laundered in washing solutions which contain such materials.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: May 8, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Rajan Keshav Panandiker, Sherri Lynn Randall, Eugene Paul Gosselink, William Conrad Wertz, Soren Hildebrandt, Elisabeth Kappes, Dieter Boeckh
  • Patent number: 6225464
    Abstract: Improved synthesis of a macropolycycle, more particularly, of a cross-bridged tetraazamacrocycle.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: May 1, 2001
    Assignee: The Procter & Gamble Company
    Inventors: George Douglas Hiler, II, Christopher Mark Perkins
  • Patent number: 6218351
    Abstract: Laundry or cleaning composition comprising: (a) a catalytically effective amount, preferably from about 1 ppb to about 99.9%, of a transition-metal bleach catalyst which is a complex of a transition-metal and a cross-bridged macropolycyclic ligand; and (b) at least about 0.1% of one or more laundry or cleaning adjunct materials, preferably comprising an oxygen bleaching agent is disclosed. Preferred compositions are laundry compositions and automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits through the use of such catalysts.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: April 17, 2001
    Assignee: The Procter & Gamble Compnay
    Inventors: Daryle Hadley Busch, Simon Robert Collinson, Timothy Jay Hubin, Christopher Mark Perkins, Regine Labeque, Barbara Kay Williams, James Pyott Johnston, David Johnathan Kitko, James Charles Theophile Roger Burckett-St. Laurent