Patents by Inventor Pushkaraj J. Lad

Pushkaraj J. Lad 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: 6251144
    Abstract: During the desizing and enzymatic stonewashing of denim fabric and/or garments, redeposition of blue color often occurs back onto the surfaces of the denim. The invention relates to a redepositing or backstain inhibiting composition and a method requiring the inclusion of an added protease prior to, during or subsequent to the stonewashing process which reduces the redeposition of the blue dye and hence improves the stonewashing process when using redepositing or backstaining cellulases to give an appearance closer to that when using stones alone or nonredepositing cellulases in the stonewashing process.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: June 26, 2001
    Assignee: Genencor International, Inc.
    Inventors: Kathleen A. Clarkson, Pushkaraj J. Lad, M. M. Mullins, Curran M. Simpson, Geoffrey L. Weiss, Lindsay Jacobs
  • Patent number: 5688290
    Abstract: Disclosed are detergent compositions containing a combination of exo-cellobiohydrolase I type cellulase components and endoglucanase type components wherein the exo-cellobiohydrolase I type cellulase components are enriched relative to the endoglucanase type components. The detergent compositions of this invention provide cleaning and softening of cotton garments while also providing substantially reduced degradation of the cotton fabric in the garment.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: November 18, 1997
    Assignee: Genencor International, Inc.
    Inventors: Nancy Bjork, Kathleen A. Clarkson, Pushkaraj J. Lad, Geoffrey L. Weiss
  • Patent number: 5668009
    Abstract: Disclosed are improved methods for treating cotton-containing fabrics as well as the fabrics produced from these methods. In particular, the disclosed methods are directed to contacting cotton-containing fabrics with an aqueous solution containing a fungal cellulase composition which comprises CBH I type components and one or more EG type components wherein said cellulase composition has a protein weight ratio of CBH I type components to all EG type components of greater than 10:1. Cotton-containing fabrics so treated possess decreased strength loss as compared to fabrics treated with a complete cellulase composition.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: September 16, 1997
    Assignee: Genencor International, Inc.
    Inventors: Kathleen A. Clarkson, Kathy Collier, Pushkaraj J. Lad, Geoffrey L. Weiss
  • Patent number: 5395541
    Abstract: A cleaning composition is disclosed. The composition contains a first enzyme where the enzyme can be Endo-D, Endo-H, Endo-L, Endo-C, Endo-CII, Endo-F-Gal type, Endo-F and PNGaseF and a second enzyme where the enzyme can be a protease, lipase, nuclease, glycosidase, an enzyme different from the first enzyme, and any combination of these. The composition also contains a detergent surfactant and a builder. The composition can be used in a method for cleaning a surface on which is bound a glycoside-containing substance. The substance can be blood or components thereof, fecal matter or components thereof or microorganisms. The surface can be fabric, biological tissue, tooth enamel, contact lens, glass, ceramic, metal, metal alloy, plastic, plant, fruit and vegetable.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: March 7, 1995
    Assignees: The Procter & Gamble Company, Genencor International, Inc.
    Inventors: Richard S. Carpenter, Irwin J. Goldstein, Pushkaraj J. Lad, Ann M. Wolff
  • Patent number: 5356803
    Abstract: An antimicrobial composition consisting essentially of from about 1 ppm to about 1200 ppm of a Type II endoglycosidase and from about 0.5 ppm to about 1200 ppm of an antimicrobial agent is disclosed. The preferred Type II endoglycosidases to be used in the invention are Endo-D, Endo-H, Endo-F and PNGaseF. The preferred antimicrobial agents are bactericides, fungicides and algicides. The composition can be used in the form of personal care or household cleaning products such as liquid soap, hard surface cleaner, laundry detergent, anti-acne medication, deodorant, shampoo, face cream, mouthwash, dentifrice and denture cleaner.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: October 18, 1994
    Assignees: Genencor International, Inc., The Procter & Gamble Company
    Inventors: Richard S. Carpenter, Pushkaraj J. Lad, Ann M. Wolff
  • Patent number: 5352243
    Abstract: Disclosed are methods for enhancing the quality of printing on cotton-containing fabrics. Specifically, this methods disclosed herein recite the pretreatment of cotton-containing fabrics with cellulase prior to printing in order to enhance printing characteristics on the fabric such as pigment uptake, enhanced clarity, reduced pigment bleeding, and the like. The methods disclosed herein generally entail treating cotton-containing fabrics with an aqueous cellulase formulation and preferably with an aqueous cellulase solution under agitating conditions.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: October 4, 1994
    Assignee: Genencor International, Inc.
    Inventors: Eunice C. Ashizawa, Kathleen A. Clarkson, Pushkaraj J. Lad, Edward Larenas
  • Patent number: 5258304
    Abstract: Microorganisms are removed from the surface of materials such as fabrics or contact lenses by treatment with a Type II endoglycosidase. The Type II endoglycosidase may be used alone or in combination with other enzymes, detergents, surfactants and/or disulfide cleaving reagents to facilitate removal of the microorganisms. The Type II endoglycosidase may be an Endo-.beta.-N-acetylglucosaminidase, Endo-.alpha.-N-acetylgalactosaminidase or Endo-.beta.-N-galactosidase.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: November 2, 1993
    Assignees: Genencor International, Inc., P&G
    Inventors: Richard S. Carpenter, Pushkaraj J. Lad, Ann M. Wolff
  • Patent number: 5238843
    Abstract: A method for cleaning a surface on which is bound a glycoside-containing substance. The substance can be blood or components thereof, fecal matter or components thereof or microorganisms. The surface can be fabric, biological tissue, tooth enamel, contact lens, glass, ceramic, metal, metal alloy, plastic, plant, fruit and vegetable. A Type II endoglycosidase is used to carry out the method.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: August 24, 1993
    Assignees: Genencor International, Inc., The Procter & Gamble Company
    Inventors: Richard S. Carpenter, Irwin J. Goldstein, Pushkaraj J. Lad, Ann M. Wolff
  • Patent number: 5232719
    Abstract: A method of improving dough characteristics is provided which includes the steps of mixing dough with a Type II endoglycosidase to form a dough mixture, shaping the dough mixture, and baking the said shaped dough mixture to form a baked good. The method of the present invention preferably uses endoglycosidase H mixed with bread dough which imparts better make-up performance of the dough, superior crumb qualities, softness of bread and higher loaf volumes.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: August 3, 1993
    Assignee: Genencor International, Inc.
    Inventors: Pushkaraj J. Lad, M. Margaret Mullins
  • Patent number: 5120463
    Abstract: Disclosed are detergent compositions containing a combination of exo-cellobiohydrolase I type cellulase components and endoglucanase components wherein the exo-cellobiohydrolase I type cellulase components are enriched relative to the endoglucanase components. The detergent compositions of this invention provide excellent cleaning of cotton garments while also providing substantially reduced degradation of the cotton fabric in the garment.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: June 9, 1992
    Assignee: Genencor International, Inc.
    Inventors: Nancy S. Bjork, Kathleen A. Clarkson, Pushkaraj J. Lad, Geoffrey L. Weiss
  • Patent number: 4749511
    Abstract: Contact lens cleaning compositions and a method which comprises treating soft contact lenses with general purpose proteases in combination with endoproteinase lys-C are effective in dissolving away and hydrolyzing lysozyme, the major protein component of tears.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: June 7, 1988
    Assignee: Genencor, Inc.
    Inventors: Pushkaraj J. Lad, Leslie R. Woodhouse