Patents by Inventor Sylvianne Dumas

Sylvianne Dumas 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).

  • UV-curable organopolysiloxane compositions and negative photoresists comprised thereof
    Patent number: 4939065
    Abstract: Substrates, e.g., silicon wafers, coated with a UV-curable organopolysiloxane composition including a crosslinking catalyst therefor (e.g., a platinum group metal compound) and an amount of a crosslinking inhibitor (e.g., an azodicarboxylate) which is effective at ambient temperature, but ineffective to prevent crosslinking on exposure of the composition to ultraviolet radiation, are well adapted for the imaging of negative intelligence patterns thereon.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: July 3, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Jacques Cavezzan, Sylvianne Dumas, Louis Giral, Christian Prud'Homme, Francois Schue