Patents by Inventor James C. Heath

James C. Heath 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 compositions containing novel crystalline forms of optical brighteners
    Patent number: 4005026
    Abstract: Novel crystalline needle forms of the fluorescent compounds disodium 4,4'-bis(4-anilino-6-morpholino-s-triazin-2-ylamino)-2,2'-stilbenedisulfon ate and disodium 4,4'-bis(4,6-dianilino-s-triazin-2-ylamino)-2,2'-stilbenedisulfonate, useful as optical brightening agents, particularly when incorporated into detergent compositions. The novel crystalline forms are prepared by heating the compound in an aqueous alkaline medium containing excess amine reactant.
    Type: Grant
    Filed: September 5, 1975
    Date of Patent: January 25, 1977
    Assignee: Sterling Drug Inc.
    Inventors: James C. Heath, Raymond E. Werner, John W. Delaney, Nathan N. Crounse
  • Novel crystalline forms of optical brighteners
    Patent number: 3951960
    Abstract: Novel crystalline needle forms of the fluorescent compounds disodium 4,4'-bis(4-anilino-6-morpholino-s-triazin-2-ylamino)-2,2'-stilbenedisulfon ate and disodium 4,4'-bis(4,6-dianilino-s-triazin-2-ylamino)-2,2'-stilbenedisulfonate, useful as optical brightening agents, particularly when incorporated into detergent compositions. The novel crystalline forms are prepared by heating the compound in an aqueous alkaline medium containing excess amine reactant.
    Type: Grant
    Filed: June 18, 1969
    Date of Patent: April 20, 1976
    Assignee: Sterling Drug Inc.
    Inventors: James C. Heath, Raymond E. Werner, John W. Delaney, Nathan N. Crounse