Patents by Inventor Dana U. Michael

Dana U. Michael 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).

  • Synergistic compositions containing 1,3-dichloroacetone oxime acetate and specific isothiazolin-3-one compounds and their use
    Patent number: 3947581
    Abstract: The present invention relates to certain processes and compositions useful for inhibiting the growth of slime in water and, in particular, water used for industrial purposes; for example, in the manufacture of pulp paper, in the manufacture of paper, in cooling water systems and in effluent water treatment. The novel processes and compositions of the present invention are processes or mixtures which show unexpected synergistic activity against microorganisms, including bacteria, fungi, and algae, which produce slime in aqueous systems or bodies which are objectionable from either an operational or aesthetic point of view. Specifically, the invention is directed to the use of compositions comprising a combination 1,3-dichloroacetone oxime acetate and a mixture of 75% of 5-chloro-2-methyl-4-isothiazolin-3-one calcium chloride and 25% of 2-methyl-4-isothiazolin-3-one calcium chloride.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: March 30, 1976
    Assignee: Betz Laboratories, Inc.
    Inventors: Paul Swered, Dana U. Michael