Patents by Inventor Roger Wilhelm Geisser

Roger Wilhelm Geisser 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 preparation of alcohols from alfa, beta-unsaturated aldehydes and ketones
    Patent number: 10570072
    Abstract: A chemoselective process for producing alcohols from ?,?-unsaturated aldehydes and ketones is described.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: February 25, 2020
    Assignee: GIVAUDAN SA
    Inventors: Roger Wilhelm Geisser, Nathalie Joset
  • Organic compounds
    Patent number: 10544179
    Abstract: A process for the hydrogenation of a substrate comprising a carbon heteroatom double bond in the presence of a transition metal complex comprising a tridentate or bisdentate-ligand containing a nitrogen, sulphur and phosphorus atom, of which at least the N- and P- and optionally also the S-atom coordinates with the transition metal.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: January 28, 2020
    Assignee: GIVAUDAN S.A.
    Inventors: Roger Wilhelm Geisser, Jürg Daniel Oetiker, Fridtjof Schröder
  • Process for the Preparation of Alcohols from Alfa, Beta-Unsaturated Aldehydes and Ketones
    Publication number: 20190218164
    Abstract: A chemoselective process for producing alcohols from ?,?-unsaturated aldehydes and ketones is described.
    Type: Application
    Filed: June 12, 2017
    Publication date: July 18, 2019
    Inventors: Roger Wilhelm GEISSER, Nathalie JOSET
  • Organic compounds
    Patent number: 10196414
    Abstract: A process for the hydrogenation of a substrate comprising a carbon heteroatom double bond in the presence of a transition metal complex comprising a tridentate or bisdentate-ligand containing a nitrogen, sulphur and phosphorus atom, of which at least the N- and P- and optionally also the S-atom coordinates with the transition metal.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: February 5, 2019
    Assignee: GIVAUDAN S.A.
    Inventors: Roger Wilhelm Geisser, Jürg Daniel Oetiker, Fridtjof Schröder
  • ORGANIC COMPOUNDS
    Publication number: 20180066003
    Abstract: A process for the hydrogenation of a substrate comprising a carbon heteroatom double bond in the presence of a transition metal complex comprising a tridentate or bisdentate-ligand containing a nitrogen, sulphur and phosphorus atom, of which at least the N- and P- and optionally also the S-atom coordinates with the transition metal.
    Type: Application
    Filed: October 6, 2017
    Publication date: March 8, 2018
    Inventors: Roger Wilhelm GEISSER, Jürg Daniel OETIKER, Fridtjof SCHRÖDER
  • IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS
    Publication number: 20160326199
    Abstract: A process for the hydrogenation of a substrate comprising a carbon heteroatom double bond in the presence of a transition metal complex comprising a tridentate or bisdentate-ligand containing a nitrogen, sulphur and phosphorus atom, of which at least the N- and P- and optionally also the S-atom coordinates with the transition metal.
    Type: Application
    Filed: January 22, 2015
    Publication date: November 10, 2016
    Inventors: Roger Wilhelm GEISSER, Jürg Daniel OETIKER, Fridtjof SCHRÖDER
  • Process for the chemoselective reduction of terminally saturated carboxylic esters
    Patent number: 9193651
    Abstract: The chemoselective reduction of a carboxylic ester (I) to an alcohol by catalytic hydrogenation, in particular in the presence of a transition metal complex, more particularly in the presence of a ruthenium (II) complex is described.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: November 24, 2015
    Assignee: Givaudan S.A.
    Inventors: Roger Wilhelm Geisser, Andreas Goeke, Fridtjof Schroeder
  • PROCESS FOR THE CHEMOSELECTIVE REDUCTION OF TERMINALLY SATURATED CARBOXYLIC ESTERS
    Publication number: 20150152029
    Abstract: The chemoselective reduction of a carboxylic ester (I) to an alcohol by catalytic hydrogenation, in particular in the presence of a transition metal complex, more particularly in the presence of a ruthenium (II) complex is described.
    Type: Application
    Filed: May 16, 2013
    Publication date: June 4, 2015
    Inventors: Roger Wilhelm Geisser, Andreas Goeke, Fridtjof Schroeder