Patents by Inventor Hoai C. Cao

Hoai C. Cao 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).

  • Stabilized built aqueous liquid softergent compositions
    Patent number: 5364553
    Abstract: The preferred "softergent" compositions include a clay softener, a mixture of anionic and nonionic surfactants, and detergent builder(s). The detergent builder is preferably a crystalline aluminosilicate zeolite. Stabilization is achieved using an antiflocculating structurant polymer, such as low molecular weight polyacrylic acid. The anionic surfactant is preferably an ethoxylated alkyl sulfate. Enzymes and enzyme stabilizers are also included in preferred compositions.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: November 15, 1994
    Assignee: Colgate-Palmolive Company
    Inventor: Hoai C. Cao