Patents by Inventor Alexandre Espert

Alexandre Espert 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).

  • Nutrient microemulsion in spray form, useful as a biodegradation accelerator
    Patent number: 6190646
    Abstract: A microemulsion is prepared containing: a mixture of (1) nitrogenous compounds, (2) from 10-5% by weight of an alkyl or alkenyl phosphoric ester surfactant, the alkyl and alkenyl groups of which contain less than 12 carbon atoms per group and the ester surfactant containing from 1 to 10 alkoxy radicals, (3) from 3 to 20% by weight of at least one cosurfactant, (4) a vegetable oil, an animal oil or a fatty acid and (5) a plasticizer. The microemulsion having a viscosity at 5° C. less than or equal to 200 mPa·sec and is stable at a temperature of −10° C. to +50° C. Further, the microemulsion is useful as a biodegradation accelerator.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: February 20, 2001
    Assignee: Elf Aquitaine
    Inventors: Jacques Tellier, Anne Basseres, Pascal Brochette, Alexandre Espert