Patents by Inventor Toan Trinh

Toan Trinh 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: 5094761
    Abstract: An effective amount of perfume/cyclodextrin complex is applied to fabric that is preferably at least partially wetted. A preferred method applies said complex to said fabric in an automatic laundry dryer. The perfume/cyclodextrin complexes are preferably incorporated into solid, dryer-activated, fabric treatment (conditioning) composition, preferably containing fabric softeners, more preferably cationic and/or nonionic fabric softeners. The complexes provide fabrics with perfume benefits when they are rewetted after drying. Volatile perfume materials, including those materials that are commonly associated with "freshness" can be applied to the fabrics in an effective way. Clay provides protection for said perfume/cyclodextrin complexes, especially when certain materials like some nonionic fabric softeners and/or fatty acids are present and in contact with said perfrum/cyclodextrin complexes.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: March 10, 1992
    Assignee: The Procter & Gamble Company
    Inventors: Toan Trinh, John M. Gardlik, Todd J. Banks, Fernando Benvegnu
  • Patent number: 5041230
    Abstract: Polymeric soil release agents that have high viscosities when molten are difficult to process. Certain organic materials can be added to such agents to lower the viscosity and improve processing. Examples of such organic materials include fatty acids, some nonionic ethylene glycol derivatives, polyethylene or polypropylene glycols and their short alkyl chain ethers, certain polyhydroxy and alkyl ether solvents, and aryl ethers of propylene glycol.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: August 20, 1991
    Assignee: The Procter & Gamble Company
    Inventors: Thomas A. Borcher, Sr., Rodolfo Delgado, Toan Trinh
  • Patent number: 4976879
    Abstract: Anionic, especially sulfoaroyl, NaO.sub.3 S(C.sub.6 H.sub.4) C(O)--preferred, end-capped esters useful as soil release agents in detergent compositions and fabric-conditioner articles. The terephthalate esters contain unsymmetrically substituted oxy-1,2-alkyleneoxy units (oxy-1,2-propyleneoxy units preferred).
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: December 11, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Rene Maldonado, Toan Trinh, Eugene P. Gosselink
  • Patent number: 4956447
    Abstract: Rinse-added fabric conditioning compositions containing cationic soil release polymers are much more effective than similar compositions containing nonionic soil release polymers for soil release. Most of the cationic soil release polymers are new compounds comprising a hydrophobic alkylene oxide/terephthalate portion which has a low molecular weight and at least a single cationic charge under use conditions.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: September 11, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Eugene P. Gosselink, Frederick E. Hardy, Toan Trinh
  • Patent number: 4925577
    Abstract: Polymeric soil release agents that have high viscosities when molten are difficult to process. Certain organic materials can be added to such agents to lower the viscosity and improve processing. Examples of such organic materials include fatty acids, some nonionic ethylene glycol derivatives, polyethylene or polypropylene glycols and their short alkyl chain ethers, certain polyhydroxy and alkyl ether solvents, and aryl ethers of propylene glycol.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: May 15, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Thomas A. Borcher, Sr., Rodolfo Delgado, Toan Trinh
  • Patent number: 4911852
    Abstract: This invention relates to liquid laundry detergent compositions comprising curable amine functional silicones for wrinkle reduction.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: March 27, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Timothy W. Coffindaffer, Toan Trinh
  • Patent number: 4911853
    Abstract: This invention relates to dry cleaning fluid compositions comprising curable amine functional silicones for wrinkle reduction and shape retention.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: March 27, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Timothy W. Coffindaffer, Toan Trinh, Leonard Wiliamson
  • Patent number: 4877896
    Abstract: Anionic, especially sulfoaroyl, NaO.sub.3 S(C.sub.6 H.sub.4)C(O)- preferred, end-capped esters useful as soil release agents in detergent compositions and fabric-conditioner articles. The terephthalate esters contain unsymmetrically substituted oxy-1,2-alkyleneoxy units (oxy-1,2-propyleneoxy units preferred).
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: October 31, 1989
    Assignee: The Procter & Gamble Company
    Inventors: Rene Maldonado, Toan Trinh, Eugene P. Gosselink
  • Patent number: 4863619
    Abstract: Polymeric soil release agents that have high viscosities when molten are difficult to process. Certain organic materials can be added to such agents to lower the viscosity and improve processing. Examples of such organic materials include fatty acids, some nonionic ethylene glycol derivatives, polyethylene or polypropylene glycols and their short alkyl chain ethers, certain polyhydroxy and alkyl ether solvents, and aryl ethers of propylene glycol.
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: September 5, 1989
    Assignee: The Proctor & Gamble Company
    Inventors: Thomas A. Borcher, Sr., Rodolfo Delgado, Toan Trinh
  • Patent number: 4855072
    Abstract: Liquid fabric softening compositions for use in a rinse bath after washing fabrics with a detergent. The softening compositions contain (a) the reaction products of higher fatty acids with a polyamine selected from the group consisting of hydroxyalkylalkylenediamines and dialkylenetriamines and mixtures thereof, (b) cationic nitrogenous salts having only one long chain acyclic aliphatic hydrocarbon group, and optionally (c) cationic nitrogenous salts having two or more long chain acyclic aliphatic hydrocarbon groups or one said group and an arylalkyl group; these compositions provide good softening performance across major types of detergents.
    Type: Grant
    Filed: July 2, 1987
    Date of Patent: August 8, 1989
    Assignee: The Procter & Gamble Company
    Inventors: Toan Trinh, Errol H. Wahl, Donald M. Swartley, Ronald L. Hemingway
  • Patent number: 4849257
    Abstract: Dryer-added fabric conditioning articles and methods utilizing a fabric conditioning composition which is released in the dryer by a dispensing means, the fabric conditioning composition comprising an improved uniform and stable mixture of: a polymeric soil release agent, particularly a higher molecular weight or a higher viscosity polymeric soil release agent, a dispersing aid, a fabric softening agent, and a viscosity control agent. The dispersing aid is used to improve the stability and the uniformity of the fabric conditioning composition.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: July 18, 1989
    Assignee: The Procter & Gamble Company
    Inventors: Thomas A. Borcher, Sr., Toan Trinh, Raymond E. Bolich, Jr.
  • Patent number: 4834895
    Abstract: Dryer-added fabric conditioning articles and methods utilizing fabric softener agent, polymeric soil release agent, and protecting agent to protect dryer surfaces.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: May 30, 1989
    Assignee: The Procter & Gamble Company
    Inventors: Thomas E. Cook, Rodolfo Delgado, Carlos G. Linares, Nabil Y. Sakkab, Toan Trinh
  • Patent number: 4818569
    Abstract: Dryer-added fabric conditioning articles and methods utilizing fabric softener agent and anionic polymeric soil release agent to provide soil release benefits with greater safety for dryer surfaces.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: April 4, 1989
    Assignee: The Procter & Gamble Company
    Inventors: Toan Trinh, Eugene P. Gosselink, Gail B. Rattinger
  • Patent number: 4764289
    Abstract: Dryer-added fabric conditioning articles and methods utilizing fabric softener agent and anionic polymeric soil release agent to provide soil release benefits with greater safety for dryer surfaces.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: August 16, 1988
    Assignee: The Procter & Gamble Company
    Inventor: Toan Trinh
  • Patent number: 4755354
    Abstract: A method of automatic brushless removal of existing soil and long term maintenance cleaning of flush toilet bowls with bromide activated hypochlorite salts. A solution which yields hypochlorite ions in a concentration of 30 to 100 ppm, and bromide ions in a concentration of 0.1 to 20 ppm is dispensed into the toilet bowl with each flush.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: July 5, 1988
    Assignee: The Procter & Gamble Company
    Inventors: Toan Trinh, Louis F. Wong
  • Patent number: 4693840
    Abstract: A substantially nonabrasive, liquid car cleaner composition which cleans car surfaces without an external source of water to wash or rinse. The product is a composition of up to 30% polymeric solids, up to 95% liquid carrier and a suspension aid. It is good for cleaning painted, metal and vinyl surfaces. It does not leave unsightly residue embedded in the texture of vinyl surfaces. A container/applicator kit comprising a bristled fibrous pad and container is also provided.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: September 15, 1987
    Assignee: The Procter & Gamble Company
    Inventors: Toan Trinh, John S. Scheper
  • Patent number: 4661269
    Abstract: Liquid fabric softening compositions for use in a rinse bath after washing fabrics with a detergent. The softening compositions contain (a) the reaction products of higher fatty acids with a polyamine selected from the group consisting of hydroxyalkylalkylenediamines and dialkylenetriamines and mixtures thereof, (b) cationic nitrogenous salts having only one long chain acyclic aliphatic hydrocarbon group, and optionally (c) cationic nitrogenous salts having two or more long chain acyclic aliphatic hydrocarbon groups or one said group and an arylalkyl group; these compositions provide good softening performance across major types of detergents.
    Type: Grant
    Filed: March 28, 1985
    Date of Patent: April 28, 1987
    Assignee: The Procter & Gamble Company
    Inventors: Toan Trinh, Errol H. Wahl, Donald M. Swartley, Ronald L. Hemingway
  • Patent number: 4512677
    Abstract: A car cleaning kit comprising a dispenser, a bristled fibrous applicator, and a substantially nonabrasive liquid cleaner composition. The kit is used to clean car surfaces without an external source of water to wash or rinse. The liquid cleaner is a composition of up to 30% polymeric solids, up to 95% liquid carrier and an effective amount of a suspension aid. It is used to clean painted, metal and vinyl surfaces. It does not leave unsightly residue embedded in the texture of vinyl surfaces.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: April 23, 1985
    Assignee: The Procter & Gamble Company
    Inventor: Toan Trinh
  • Patent number: 4482593
    Abstract: A floor mat comprising: a hydrophilic flocking adhesive, flock fibers, a thin primary backing selected from nonwoven, woven and polymeric film substrates, a laminating adhesive and a foam secondary backing. The flock fibers are bonded to the primary backing with the hydrophilic flocking adhesive. The primary backing is laminated to the foam secondary backing with the laminating adhesive. The hydrophilic flocking adhesive improves the wet soil absorbency of the mat.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: November 13, 1984
    Assignee: The Procter & Gamble Company
    Inventors: Paul J. Sagel, Toan Trinh
  • Patent number: 4481126
    Abstract: A substantially nonabrasive, liquid car cleaner composition which cleans car surfaces without an external source of water to wash or rinse. The product is a composition of up to 30% polymeric solids, up to 95% liquid carrier and a suspension aid. It is good for cleaning painted, metal and vinyl surfaces. It does not leave unsightly residue embedded in the texture of vinyl surfaces. A container/applicator kit comprising a bristled fibrous pad and container is also provided.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: November 6, 1984
    Assignee: The Procter & Gamble Company
    Inventors: Toan Trinh, John S. Scheper