Patents by Inventor Jean-Marie Santer

Jean-Marie Santer 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).

  • Method for the production of (3-alkoxycarbonyl-2-butenyl) triphenylphosphonium salts
    Patent number: 5777149
    Abstract: Novel processes and intermediates useful for the manufacture of the Wittig ester salts are disclosed. The Wittig ester salts are known as important C.sub.5 building blocks for the manufacture of various polyenecarboxylic acid esters in the field of carotenoid chemistry.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: July 7, 1998
    Assignee: Roche Vitamins Inc.
    Inventors: Bruno Burdet, August Ruttimann, Jean-Marie Santer, Theodor Siegfried
  • Method for the production of (3-alkoxycarbonyl-2-butenyl) triphenylphosphonium salts
    Patent number: 5681977
    Abstract: Novel processes and intermediates useful for the manufacture of the Wittig ester salts are disclosed. The Wittig ester salts are known as important C.sub.5 building blocks for the manufacture of various polyenecarboxylic acid esters in the field of carotenoid chemistry.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: October 28, 1997
    Assignee: Roche Vitamins Inc.
    Inventors: Bruno Burdet, August Ruttimann, Jean-Marie Santer, Theodor Siegfried
  • Method for the production of (3-alkoxycarbonyl-2-butenyl) triphenylphosphonium salts
    Patent number: 5631398
    Abstract: A processes and intermediates useful for the manufacture of the Wittig ester salts are disclosed. The Wittig ester salts are known as important C.sub.5 building blocks for the manufacture of various polyenecarboxylic acid esters in the field of carotenoid chemistry.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: May 20, 1997
    Assignee: Roche Vitamins Inc.
    Inventors: Bruno Burdet, August R uttimann, Jean-Marie Santer, Theodor Siegfried
  • Method for the production of (3-alkoxycarbonyl-2-butenyl)triphenylphosphonium salts
    Patent number: 5502236
    Abstract: Novel processes and intermediates useful for the manufacture of the Wittig ester salts are disclosed. The Wittig ester salts are known as important CS building blocks for the manufacture of various polyenecarboxylic acid esters in the field of carotenoid chemistry.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: March 26, 1996
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Bruno Burdet, August Ru/ ttimann, Jean-Marie Santer, Theodor Siegfried