Patents by Inventor Jan G. Heesen

Jan G. Heesen 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).

  • Sequestering agents
    Patent number: 4000083
    Abstract: A sequestering agent containing a mixture of one or more organic compounds having a carboxylic acid or carboxylate group and at least vicinal hydroxy groups adjacent to the carboxyl moiety, and a compound selected from boric acid, borax and alkali metal borates, is described.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: December 28, 1976
    Assignee: B.degree.V.degree. Chemie Combinatie Amsterdam C.degree.C.degree.A.degree.
    Inventor: Jan G. Heesen