Patents by Inventor Julian Henschke

Julian Henschke 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).

  • Chiral ligands for asymmetric catalysis
    Publication number: 20050043556
    Abstract: The present invention is based around the discoveries that novel ligands of formula (4) and the opposite enantiomers thereof, (i) have utility as components of catalysts for asymmetric hydrogenation and (ii) are readily accessible by an efficient general synthetic route. In particular, ruthenium-diamine complexes of the ligands (4) are highly active and selective catalysts for the asymmetric hydrogenation of ketones.
    Type: Application
    Filed: December 5, 2002
    Publication date: February 24, 2005
    Inventors: Christophe Malan, Antonio Zanotti- Gerosa, Julian Henschke
  • Phosphorus p-cyclophane ligands and their use in transition metal catalyzed asymmetric reactions
    Patent number: 6613922
    Abstract: Chiral di-phosphonites and phosphhours diamides based on the ps-ortho disubstituted p-cyclophane skeleton are good ligands for transition metals, notably rhodium, iridium and ruthenium. Preferably, the transition metals are linked to the ligands by a diene compound chosen from 2,5-Norbornadiene (NBD) and 1,5-Cyclooctadiene (COD).
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: September 2, 2003
    Assignee: Chirotech Technology Limited
    Inventors: Antonio Zanotti-Gerosa, Christophe Guillaume Malan, Julian Henschke, Daniela Herzberg
  • Ligands and their use
    Publication number: 20020151735
    Abstract: A compound of the following formula: 1
    Type: Application
    Filed: January 22, 2002
    Publication date: October 17, 2002
    Inventors: Antonio Zanotti-Gerosa, Christophe Guillaume Malan, Julian Henschke, Daniela Herzberg