Patents by Inventor Pallassanna Ramachandran

Pallassanna Ramachandran 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: 4900475
    Abstract: A stabilized enzyme-containing liquid detergent is provided comprising(a) from about 5 to 20%, by weight, of one or more surface active detergent compounds selected from the group consisting of anionic, nonionic and amphoteric detergent compounds;(b) from about 5 to 30%, by weight, of one or more builder salts selected from the group consisting of alkali metal tripolyphosphates, alkali metal carbonates, alkali metal nitrilotriacetates and polyacetal carboxylates;(c) an effective amount of an enzyme or an enzyme mixture selected from the group consisting of alkaline protease enzymes and alpha-amylase enzymes;(d) an enzyme-stabilizing system containing, based on the weight of the detergent composition, (i) from about 1% to 10% glycerine; (ii) from about 1 to 8% of a boron compound selected from the group consisting of boric acid, boric oxide and alkali metal borates; and (iii) from about 0.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: February 13, 1990
    Assignee: Colgate-Palmolive Co.
    Inventors: Pallassanna Ramachandran, Jan E. Shulman
  • Patent number: 4536316
    Abstract: A fabric softening composition is provided for use in admixture with a particulate detergent composition or as a softening additive to the wash solution separate from the detergent composition, such softening composition comprising: (i) discrete softening particles containing at least about 75%, by weight, of a smectite-type clay, and less than about 5%, by weight, of detergent surface active agents selected from the group consisting of anionic, nonionic, ampholytic and zwitterionic detergents; and (ii) a cationic compound selected from the group consisting of primary, secondary and tertiary amines and their water-soluble salts, diamine and diammonium salts, and quaternary ammonium, phosphonium and sulfonium compounds, substantially all of said cationic compound being adsorbed upon the surface of said particles.
    Type: Grant
    Filed: June 1, 1983
    Date of Patent: August 20, 1985
    Assignee: Colgate-Palmolive Co.
    Inventor: Pallassanna Ramachandran
  • Patent number: 4536315
    Abstract: A perfume-containing carrier is provided for use in admixture with a particulate laundry detergent composition or as an additive to the wash solution separate from the detergent composition to impart a pleasing fragrance to laundered fabrics.
    Type: Grant
    Filed: June 1, 1983
    Date of Patent: August 20, 1985
    Assignee: Colgate Palmolive Co.
    Inventors: Pallassanna Ramachandran, Paul S. Grand