Patents by Inventor Uday Shanker Racherla

Uday Shanker Racherla 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).

  • High moisture retaining bars compositions comprising borax as water structurant
    Patent number: 6440908
    Abstract: The subject invention involves high moisture containing bar compositions comprising required amounts of a borate compound. The borate compound structures water in the bar thereby enabling the retention of high amounts of moisture without compromising bar properties.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: August 27, 2002
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventor: Uday Shanker Racherla
  • HIGH MOISTURE RETAINING BARS COMPOSITIONS COMPRISING BORAX AS WATER STRUCTURANT
    Publication number: 20020016271
    Abstract: The subject invention involves high moisture containing bar compositions comprising required amounts of a borate compound. The borate compound structures water in the bar thereby enabling the retention of high amounts of moisture without compromising bar properties.
    Type: Application
    Filed: November 30, 1999
    Publication date: February 7, 2002
    Inventor: UDAY SHANKER RACHERLA
  • Bleaching compositions based on air, uncomplexed transition metal ions and aromatic aldehydes
    Patent number: 6140298
    Abstract: A bleach composition and a method for bleaching stains is provided, the composition including a C.sub.7 -C.sub.20 aromatic aldehyde and a transition metal salt. Air is employed as source of oxygen which combines with the aldehyde to form the bleach active species. Peroxides, inorganic persalts and bleach precursors are unnecessary elements for the bleach systems of this invention.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: October 31, 2000
    Assignee: Lever Brothers Company, division of Conopco, Inc.
    Inventors: Uday Shanker Racherla, Robert Charles Vermeer
  • Bleaching compositions and method for bleaching substrates directly with air
    Patent number: 6117833
    Abstract: A bleach composition and a method for bleaching stains is provided, the composition including a C.sub.7 -C.sub.20 aromatic aldehyde and an imide, the latter being particularly N-hydroxyphthalimide. Air is employed as a source of oxygen which combines with the aldehyde to form the bleach active species. Peroxides, inorganic persalts and bleach precursors are unnecessary elements for the bleach systems of this invention.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: September 12, 2000
    Assignee: Lever Brothers Company
    Inventors: Uday Shanker Racherla, Robert Charles Vermeer
  • Bleaching with polyoxometalates and air or molecular oxygen
    Patent number: 6074437
    Abstract: A method for bleaching laundry and household surfaces is provided which iudes preparing a wash medium with a bleaching composition incorporating polyoxometalates and being free of any effective amount of a bleaching agent such as hydrogen peroxide, organic peracids, inorganic peracids, organic persalts, inorganic persalts, Caro's acid, Caroates and mixtures thereof. A second step involves contacting a stained substrate such as a fabric, kitchenware or a household hard surface for a time and in an amount sufficient to remove the stains. Air is employed as a primary source of oxygen atoms for bleaching.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: June 13, 2000
    Assignee: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Uday Shanker Racherla, Qin Chen