Patents by Inventor Jean-Marc Chovelon

Jean-Marc Chovelon 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 producing a surface gate of an integrated electro-chemical sensor, consisting of a field-effect transistor sensitive to alkaline-earth species and sensor obtained
    Patent number: 5350701
    Abstract: A process for producing a surface gate comprising a selective membrane for an integrated chemical sensor comprising a field effect transistor, and the integrated chemical sensor thus produced, wherein the surface gate is particularly sensitive to alkaline-earth species, and more particularly, sensitive to the calcium ion. The process comprises forming grafts on the surface gate, and making the grafts operative utilizing phosphonate-based, iono-sensitive molecules.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: September 27, 1994
    Assignee: Ecole Centrale de Lyon
    Inventors: Nicole Jaffrezic-Renault, Jean-Marc Chovelon, Hubert Perrot, Pierre Le Perchec, Yves Chevalier