Patents by Inventor Joerg R. Blankenstein

Joerg R. Blankenstein 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).

  • Phosphinite-oxazolines and metal complexes
    Patent number: 6632954
    Abstract: Compounds of formulae I and Ia, wherein X1 is secondary phosphino; R3 is hydrogen, a hydrocarbon radical having from 1 to 20 carbon atoms, a heterohydrocarbon radical, bonded via a carbon atom, having from 2 to 20 atoms and at least one hetero atom selected from the group O, S and NR, or ferrocenyl; R is H or C1-C4alkyl; each R4 individually or both R4 together are a hydrocarbon radical having from 1 to 20 carbon atoms; and R01 and R02 are each independently of the other a hydrogen atom or a hydrocarbon radical having from 1 to 20 carbon atoms, are chiral ligands for metal complexes with metals of sub-groups I and VIII, which are catalysts for asymmetric addition reactions, for example of hydrogen, to prochiral unsaturated organic compounds.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: October 14, 2003
    Assignee: Solvias AG
    Inventors: Andreas Pfaltz, Joerg R. Blankenstein, Frederik Menges
  • Phosphinite-oxazolines and metal complexes thereof
    Patent number: 6498256
    Abstract: Compounds of formulae I and Ia, wherein X1 is secondary phosphino; R3 is hydrogen, a hydrocarbon radical having from 1 to 20 carbon atoms, a heterohydrocarbon radical, bonded via a carbon atom, having from 2 to 20 atoms and at least one hetero atom selected from the group O, S and NR, or ferrocenyl; R is H or C1-C4alkyl; each R4 individually or both R4 together are a hydrocarbon radical having from 1 to 20 carbon atoms; and R01 and R02 are each independently of the other a hydrogen atom or a hydrocarbon radical having from 1 to 20 carbon atoms, are chiral ligands for metal complexes with metals of sub-groups I and VII, which are catalysts for asymmetric addition reactions, for example of hydrogen, to prochiral unsaturated organic compounds.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: December 24, 2002
    Assignee: Solvias AG
    Inventors: Andreas Pfaltz, Joerg R. Blankenstein, Frederik Menges
  • Phosphinite-oxazolines and metal complexes
    Publication number: 20020128486
    Abstract: Compounds of formulae I and Ia, 1
    Type: Application
    Filed: February 26, 2002
    Publication date: September 12, 2002
    Inventors: Andreas Pfaltz, Joerg R. Blankenstein, Frederik Menges
  • Phosphinite-oxazolines and metal complexes
    Publication number: 20020062027
    Abstract: Compounds of formulae I and Ia, 1
    Type: Application
    Filed: September 20, 2001
    Publication date: May 23, 2002
    Inventors: Andreas Pfaltz, Joerg R. Blankenstein, Frederik Menges