Patents by Inventor Changning Guo

Changning Guo 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).

  • Reaction monitoring of chiral molecules using fourier transform infrared vibrational circular dichroism spectroscopy
    Patent number: 7378283
    Abstract: A method and apparatus to monitor the enantiomeric excess of chiral molecules participating in a chemical reaction. The method includes real time monitoring of the chemical reaction by obtaining a VCD spectra and an IR spectra of the chemical compounds in the reaction, and manipulating the spectra to obtain a % EE value. Using such real time information, the reaction parameters can be changed to shift the reaction to produce more of one chiral molecule than another.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: May 27, 2008
    Assignee: BioTools, Inc.
    Inventors: Laurence A. Nafie, Changning Guo, Rina K. Dukor
  • Reaction monitoring of chiral molecules using fourier transform infrared vibrational circular dichroism spectroscopy
    Publication number: 20060009919
    Abstract: A method and apparatus to monitor the enantiomeric excess of chiral molecules participating in a chemical reaction. The method includes real time monitoring of the chemical reaction by obtaining a VCD spectra and an IR spectra of the chemical compounds in the reaction, and manipulating the spectra to obtain a % EE value. Using such real time information, the reaction parameters can be changed to shift the reaction to produce more of one chiral molecule than another.
    Type: Application
    Filed: October 14, 2003
    Publication date: January 12, 2006
    Inventors: Laurence Nafie, Changning Guo, Rina Dukor