Patents by Inventor Laurence Marthe Marie Firmin

Laurence Marthe Marie Firmin 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 the production of irones
    Patent number: 6224874
    Abstract: A process for the preparation of irones by a chemical oxidation of irone precursors, comprising treating an iris rhizome substrate selected from the group consisting of iris rhizomes, parts of such rhizomes, iris extracts, iris extraction wastes, any plant tissues containing precursors of irones and mixtures thereof, is described.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: May 1, 2001
    Inventors: Charles Ehret, Laurence Marthe Marie Firmin, Didier Courtois