Patents by Inventor Youngen LI

Youngen LI 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).

  • KETOL-ACID REDUCTOISOMERASE USING NADH
    Publication number: 20140057329
    Abstract: Methods for the evolution of NADPH specific ketol-acid reductoisomerase enzymes to acquire NADH specificity are provided. Specific mutant ketol-acid reductoisomerase enzymes isolated from Pseudomonas that have undergone co-factor switching to utilize NADH are described.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 27, 2014
    Applicant: Butamax(TM) Advanced Biofuels LLC
    Inventors: Youngen LI, Der-Ing Liao, Mark J. Nelson, Daniel P. Okeefe