Patents by Inventor Li-Ta Kao

Li-Ta Kao 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).

  • Processes and intermediates for the preparations of isomer free prostaglandins
    Patent number: 10822321
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: November 3, 2020
    Assignee: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • PROCESSES AND INTERMEDIATES FOR THE PREPARATIONS OF ISOMER FREE PROSTAGLANDINS
    Publication number: 20180251442
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Application
    Filed: May 3, 2018
    Publication date: September 6, 2018
    Applicant: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • Processes and intermediates for the preparations of isomer free prostaglandins
    Patent number: 9994543
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: June 12, 2018
    Assignee: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • PROCESSES AND INTERMEDIATES FOR THE PREPARATIONS OF ISOMER FREE PROSTAGLANDINS
    Publication number: 20180050999
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Application
    Filed: October 27, 2017
    Publication date: February 22, 2018
    Applicant: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • Processes and intermediates for the preparations of isomer free prostaglandins
    Patent number: 9890135
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: February 13, 2018
    Assignee: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • Processes and intermediates for the preparations of isomer free prostaglandis
    Patent number: 9828356
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: November 28, 2017
    Assignee: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • PROCESSES AND INTERMEDIATES FOR THE PREPARATIONS OF ISOMER FREE PROSTAGLANDINS
    Publication number: 20170073323
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Application
    Filed: November 23, 2016
    Publication date: March 16, 2017
    Applicant: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • PROCESSES AND INTERMEDIATES FOR THE PREPARATIONS OF ISOMER FREE PROSTAGLANDINS
    Publication number: 20170015646
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Application
    Filed: July 17, 2015
    Publication date: January 19, 2017
    Applicant: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • Processes and intermediates for the preparations of isomer free prostaglandins
    Patent number: 9540311
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: January 10, 2017
    Assignee: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • Processes and intermediates for the preparations of isomer free prostaglandins
    Patent number: 9464028
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: October 11, 2016
    Assignee: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • PROCESSES AND INTERMEDIATES FOR THE PREPARATIONS OF ISOMER FREE PROSTAGLANDINS
    Publication number: 20160016883
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Application
    Filed: July 17, 2015
    Publication date: January 21, 2016
    Applicant: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • PROCESSES AND INTERMEDIATES FOR THE PREPARATIONS OF ISOMER FREE PROSTAGLANDINS
    Publication number: 20150336923
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Application
    Filed: July 17, 2015
    Publication date: November 26, 2015
    Applicant: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • PROCESSES AND INTERMEDIATES FOR THE PREPARATIONS OF ISOMER FREE PROSTAGLANDINS
    Publication number: 20150336921
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Application
    Filed: July 17, 2015
    Publication date: November 26, 2015
    Applicant: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • Processes and intermediates for the preparations of isomer free prostaglandins
    Patent number: 9115109
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: August 25, 2015
    Assignee: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao
  • PROCESSES AND INTERMEDIATES FOR THE PREPARATIONS OF ISOMER FREE PROSTAGLANDINS
    Publication number: 20150051410
    Abstract: Novel processes for the preparation of a compound of Formula I-2 substantially free of the 5,6-trans isomer: wherein R2, R3 and R4 are as defined in the specification are provided. Novel intermediates for the preparations of isomer free Prostaglandins and derivatives thereof are also provided.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 19, 2015
    Applicant: CHIROGATE INTERNATIONAL INC.
    Inventors: Shih-Yi Wei, Yu-Chih Yeh, Min-Kuan Hsu, Li-Ta Kao