Patents by Inventor Daniel Guilmard

Daniel Guilmard 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).

  • Patent number: 6107488
    Abstract: A subject of the invention is a preparation process for the products of formula (I): ##STR1## in which R.sub.1 and R.sub.2 represent in particular hydrogen, cyano, halogen or amino,R.sub.3 represents in particular hydrogen or hydroxyl alkyl,R.sub.4 and R.sub.5 represent in particular optionally substituted alkyl,X and y represent oxygen or sulphur, characterized in that a product of formula (A): ##STR2## is prepared in which W represents a halogen atom or a hydantoin derivative,which is subjected to various reactions in order to obtain the products of formula (I), all their isomers and their salts.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: August 22, 2000
    Assignee: Hoechst Marion Roussel
    Inventors: Raphael Bouchet, Michel Delthil, Daniel Guilmard, Philippe Mackiewicz
  • Patent number: 6002006
    Abstract: A compound of the formula ##STR1## wherein alc.sub.1, alc.sub.2 and alc.sub.3 are alkyl of up to 8 carbon atoms, n is an integer from 0 to 8, R.sub.1 and R.sub.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: December 14, 1999
    Assignee: Hoechst Marion Roussel
    Inventors: Alain Bonnet, Raphael Bouchet, Daniel Guilmard, Alain Mazurie