Patents by Inventor Chia-Han Song

Chia-Han Song 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).

  • Methods for producing biochemicals using enzyme genes derived from a strain of , and compositions made thereby
    Patent number: 11851664
    Abstract: A crtW gene from a strain of Brevundimonas is disclosed that encodes a novel ketolase for carotenoid synthesis. An exemplary synthetic operon containing additional relevant carotenoid gene sequences is also provided, where the expression of the synthetic operon is used to produce ketocarotenoids. Suitable DNA expression constructs derived from these sequences are inserted into an expression host for expression. The expression product is a ketolase enzyme that is operable for transforming beta-carotene into canthaxanthin and astaxanthin.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: December 26, 2023
    Assignee: OAKBIO, INC.
    Inventors: Chia-Han Song, William J. Coleman, Brian Sefton
  • METHODS FOR PRODUCING BIOCHEMICALS USING ENZYME GENES DERIVED FROM A STRAIN OF BREVUNDIMONAS, AND COMPOSITIONS MADE THEREBY
    Publication number: 20220204979
    Abstract: A crtW gene from a strain of Brevundimonas is disclosed that encodes a novel ketolase for carotenoid synthesis. An exemplary synthetic operon containing additional relevant carotenoid gene sequences is also provided, where the expression of the synthetic operon is used to produce ketocarotenoids. Suitable DNA expression constructs derived from these sequences are inserted into an expression host for expression. The expression product is a ketolase enzyme that is operable for transforming beta-carotene into canthaxanthin and astaxanthin.
    Type: Application
    Filed: August 5, 2021
    Publication date: June 30, 2022
    Inventors: Chia-Han Song, William J. Coleman, Brian Sefton