Patents by Inventor Jason Z. Zhang

Jason Z. Zhang 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).

  • Patent number: 8084643
    Abstract: The present invention discloses certain novel prodrugs of florfenicol and/or of florfenicol analogs, including prodrugs of salts pharmaceutically acceptable salts of florfenicol and its analogs, including nitrogen-containing esters of the secondary alcohol group of florfenicol and of its analogs, and pharmaceutically acceptable salts thereof, compositions containing them, and methods of administering them to subjects. In particular embodiments the prodrugs are sufficiently water-soluble to serve the functions needed of a water-soluble prodrug of florfenicol or of a water-soluble prodrug of a florfenicol analog. A certain subclass of the compounds also possesses the hydrolytic stability needed to maintain the prodrug in solution in the subject's system until appropriate conditions exist when the prodrug can hydrolyze, releasing florfenicol or the florfenicol analog in question.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: December 27, 2011
    Assignee: Intervet Inc.
    Inventors: Tomasz W. Glinka, Jason Z. Zhang
  • Publication number: 20080188556
    Abstract: The present invention discloses certain novel prodrugs of florfenicol and/or of florfenicol analogs, including prodrugs of salts pharmaceutically acceptable salts of florfenicol and its analogs, including nitrogen-containing esters of the secondary alcohol group of florfenicol and of its analogs, and pharmaceutically acceptable salts thereof, compositions containing them, and methods of administering them to subjects. In particular embodiments the prodrugs are sufficiently water-soluble to serve the functions needed of a water-soluble prodrug of florfenicol or of a water-soluble prodrug of a florfenicol analog. A certain subclass of the compounds also possesses the hydrolytic stability needed to maintain the prodrug in solution in the subject's system until appropriate conditions exist when the prodrug can hydrolyze, releasing florfenicol or the florfenicol analog in question.
    Type: Application
    Filed: December 11, 2007
    Publication date: August 7, 2008
    Inventors: Tomasz W. Glinka, Jason Z. Zhang
  • Patent number: 6495106
    Abstract: Disclosed is an automated staining apparatus including an arm (30) moveable in three dimensions, and a hollow tip head (70) located on the arm including integral reagent tip head (40), wash tip (41) and blow tip (42) for selectively dispensing gas and liquid onto microscope slides. Also disclosed are various sub-components of the apparatus that are specifically adapted to the processing of specimens on slides.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: December 17, 2002
    Assignee: BioGenex Laboratories
    Inventors: Krishan L. Kalra, Jason Z. Zhang, Zhi-Weng Chang, Jianghong Shui
  • Patent number: 5948359
    Abstract: Disclosed is an automated staining apparatus including an arm moveable in three dimensions, and a hollow tip head located on the arm including integral reagent tip head, wash tip and blow tip for selectively dispensing gas and liquid onto microscope slides. Also disclosed are various sub-components of the apparatus that are specifically adapted to the processing of specimens on slides.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: September 7, 1999
    Assignee: BioGenex Laboratories
    Inventors: Krishan L. Kalra, Jason Z. Zhang, Zhi-Weng Chang, Jianghong Shui