Patents by Inventor Dainis Dakternieks

Dainis Dakternieks 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).

  • Chemical methods
    Patent number: 6696611
    Abstract: The present invention provides a method for enantioselectively reducing a prochiral carbon centered radical having one or more electron donator groups attached directly to the central prochiral carbon atom of the radical, and/or attached to a carbon atom within 1 to 4 atoms of the central prochiral carbon atom, comprising treating said radical with a chiral non-racemic organotin hydride in the presence of a Lewis acid.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: February 24, 2004
    Assignee: Chirogen Pty. Limited
    Inventors: Dainis Dakternieks, Carl H. Schiesser, Tamara Perchyonok
  • Chemical methods
    Publication number: 20030166979
    Abstract: Disclosed is a method for enantioselectively-reducing a prochiral carbon-centered radical having one or more electron donator groups attached directly to the central prochiral carbon atom of the radical, and/or attached to a carbon atom within 1 to 4 atoms of the central prochiral carbon atom, comprising treating said radical with a chiral non-racemic organotin hydride in the presence of a Lewis acid.
    Type: Application
    Filed: October 1, 2002
    Publication date: September 4, 2003
    Inventors: Dainis Dakternieks, Carl H. Schiesser, Tamara Perchyonok
  • Chemical methods
    Publication number: 20020133039
    Abstract: The present invention provides a method for enantioselectively reducing a prochiral carbon centered radical having one or more electron donator groups attached directly to the central prochiral carbon atom of the radical, and/or attached to a carbon atom within 1 to 4 atoms of the central prochiral carbon atom, comprising treating said radical with a chiral non-racemic organotin hydride in the presence of a Lewis acid.
    Type: Application
    Filed: July 27, 2001
    Publication date: September 19, 2002
    Inventors: Dainis Dakternieks, Carl H. Schiesser, Tamara Perchyonok