Patents by Inventor Theodore Choi

Theodore Choi 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 recombinant mammalian cells harboring a yeast artificial chromosome
    Patent number: 5981175
    Abstract: The present invention provides methods and compositions for transferring large transgene polynucleotides and unlinked selectable marker polynucleotides into eukaryotic cells by a novel method designated co-lipofection. The methods and compositions of the invention are used to produce novel transgenic non-human animals harboring large transgenes, such as a transgene comprising a human APP gene or human immunoglobulin gene.
    Type: Grant
    Filed: January 25, 1994
    Date of Patent: November 9, 1999
    Assignee: Genpharm Internation, Inc.
    Inventors: Jeanne F. Loring, Theodore Choi, Robert M. Kay