Patents by Inventor Daniel Duouenne

Daniel Duouenne 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).

  • Process for absorbing organic polluting products
    Patent number: 5360548
    Abstract: Process for the removal of organic pollutants prevalent on a liquid or solid surface by sprinkling a polymer chosen from polybicyclo(2.2.1.) heptene-2 and polymethyl-5-bicyclo(2.2.1) heptene-2. The polymer is first agglomerated using a plasticizing agent. The process is used for the decontamination of water ways.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: November 1, 1994
    Assignee: Elf Atochem, S.A.
    Inventors: Claude Stein, Daniel Duouenne