Patents by Inventor Mark Andrew SHEFF

Mark Andrew SHEFF 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).

  • Microorganisms and processes for lactic acid production
    Patent number: 11447802
    Abstract: Yeast strains and fermentation process for producing D-lactic acid and L-lactic acid are disclosed with higher titer, higher yield, shorter time, lower pH, and higher average specific productivity.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: September 20, 2022
    Assignee: PTT Global Chemical Public Company Limited
    Inventors: Sudhanshu Vijay Dole, Theron Hermann, Sean Joseph Regan, Mark Andrew Sheff, Russell Lizardo Udani, R. Rogers Yocum
  • MICROBIAL STRAINS ENGINEERED FOR IMPROVED FRUCTOSE UTILIZATION
    Publication number: 20220090149
    Abstract: The present invention discloses a genetically engineered Kluyveromyces sp. yeast strain that is capable of producing lactic acid from carbon source selected from glucose, fructose, sucrose or a mixture thereof wherein the genetically engineered yeast comprises at least one heterologous DNA cassette that confers production of a protein functioning as a fructose importer. The genetically engineered yeast strain according to this invention has an improvement of fructose utilization and use fructose as a faster rate than conventional strain, allowing for shorter fermentation times and improved economics.
    Type: Application
    Filed: December 23, 2019
    Publication date: March 24, 2022
    Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: Sudhanshu Vijay DOLE, Joel Stewart SCHMID, R. Rogers YOCUM, Theron HERMANN, Russell Lizardo UDANI, Sean Joseph REGAN, Mark Andrew SHEFF, Michelle SPENCER, Ryan SILLERS, Phatthanon PRASITCHOKE, Natthawut POOMSILA