Patents by Inventor Shaw-Lin Han

Shaw-Lin Han 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).

  • Detergent composition
    Patent number: 5102573
    Abstract: Liquid, caustic-free, pre-spotting compositions that remove baked-on food residues from hard surfaces at ambient temperatures are provided which comprise:a. from about 1 to 40%, preferably 4 to 20%, of a surfactant selected from the group consisting of anionic surfactants, nonionic surfactants and mixtures thereof;b. from about 1 to 10% of a builder selected from the group consisting of polyphosphates, pyrophosphates, citrates, carbonates, and mixtures thereof;c. from about 0.2% to 2% of an amine selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine and mixtures thereof;d. water; ande.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: April 7, 1992
    Assignee: Colgate Palmolive Co.
    Inventors: Shaw-Lin Han, Kuo-Yann Lai, Edward P. Duliba