Patents by Inventor WEIGUO QUAN

WEIGUO QUAN 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).

  • Pyrrolidinone compounds
    Patent number: 10807971
    Abstract: The present invention provides compounds which are of the formula (I) and (II) wherein X is selected from the group consisting of (III) and (IV); R is selected from the group consisting of (V) and (VI); Q is selected from the group consisting of (VII) and (VIII); and (IX) R2 is selected from the group consisting of (X) and (XI); or a pharmaceutically acceptable salt thereof, methods for treating obesity, type II diabetes, and compositions.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: October 20, 2020
    Assignee: Eli Lilly and Company
    Inventors: Koc Kan Ho, Weiguo Quan, Jingye Zhou
  • PYRROLIDINONE COMPOUNDS
    Publication number: 20190345144
    Abstract: The present invention provides compounds which are of the formula (I) and (II) wherein X is selected from the group consisting of (III) and (IV); R is selected from the group consisting of (V) and (VI); Q is selected from the group consisting of (VII) and (VIII); and (IX) R2 is selected from the group consisting of (X) and (XI); or a pharmaceutically acceptable salt thereof, methods for treating obesity, type II diabetes, and compositions.
    Type: Application
    Filed: November 27, 2017
    Publication date: November 14, 2019
    Inventors: Koc Kan Ho, Weiguo Quan, Jingye Zhou
  • Inhibitors of HIF prolyl hydroxylase
    Patent number: 10208060
    Abstract: The present invention concerns compounds of formula I or a pharmaceutically acceptable salt thereof which inhibit HIF prolyl hydroxylase, their use for enhancing endogenous production of erythropoietin, and for treating conditions associated with reduced endogenous production of erythropoietin such as anemia and like conditions, as well as pharmaceutical compositions comprising such a compound and a pharmaceutical carrier.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: February 19, 2019
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Jiaqiang Cai, Alejandro Crespo, John Debenham, Xiaoxing Du, Ping Liu, Rongqiang Liu, Christina B. Madsen-Duggan, Weiguo Quan, Christopher Sinz, Liping Wang
  • Inhibitors of HIF prolyl hydroxylase
    Patent number: 10000501
    Abstract: The present invention concerns a compound of formula I or a pharmaceutically acceptable salt thereof, which inhibit HIF prolyl hydroxylase, their use for enhancing endogenous production of erythropoietin, and for treating conditions associated with reduced endogenous production of erythropoietin such as anemia and like conditions, as well as pharmaceutical compositions comprising such a compound and a pharmaceutical carrier.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: June 19, 2018
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Jiaqiang Cai, Vincent Colandrea, Alejandro Crespo, John Debenham, Xiaoxing Du, Deodialsingh Guiadeen, Ping Liu, Rongqiang Liu, Christina B. Madsen-Duggan, Joshua G. McCoy, Weiguo Quan, Christopher Sinz, Liping Wang
  • Inhibitors of HIF prolyl hydroxylase
    Patent number: 9969752
    Abstract: The present invention concerns compounds of formula I or pharmaceutically acceptable salts thereof, which inhibit HIF prolyl hydroxylase, their use for enhancing endogenous production of erythropoietin, and for treating conditions associated with reduced endogenous production of erythropoietin such as anemia and like conditions, as well as pharmaceutical compositions comprising such a compound and a pharmaceutical carrier.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: May 15, 2018
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Jiaqiang Cai, Alejandro Crespo, Xiaoxing Du, Byron Gabriel Dubois, Deodialsingh Guiadeen, Shankaran Kothandaraman, Ping Liu, Rongqiang Liu, Weiguo Quan, Christopher Sinz, Liping Wang
  • INHIBITORS OF HIF PROLYL HYDROXYLASE
    Publication number: 20170313718
    Abstract: The present invention concerns compounds of formula I or a pharmaceutically acceptable salt thereof which inhibit HIF prolyl hydroxylase, their use for enhancing endogenous production of erythropoietin, and for treating conditions associated with reduced endogenous production of erythropoietin such as anemia and like conditions, as well as pharmaceutical compositions comprising such a compound and a pharmaceutical carrier.
    Type: Application
    Filed: September 23, 2015
    Publication date: November 2, 2017
    Applicants: MERCK SHARP & DOHME CORP., MSD R&D (CHINA) CO., LTD.
    Inventors: JIAQIANG CAI, ALEJANDRO CRESPO, JOHN DEBENHAM, XIAOXING DU, PING LIU, RONGQIANG LIU, CHRISTINA B. MADSEN-DUGGAN, WEIGUO QUAN, CHRISTOPHER SINZ, LIPING WANG
  • INHIBITORS OF HIF PROLYL HYDROXYLASE
    Publication number: 20170240555
    Abstract: The present invention concerns a compound of formula I or a pharmaceutically acceptable salt thereof, which inhibit HIF prolyl hydroxylase, their use for enhancing endogenous production of erythropoietin, and for treating conditions associated with reduced endogenous production of erythropoietin such as anemia and like conditions, as well as pharmaceutical compositions comprising such a compound and a pharmaceutical carrier.
    Type: Application
    Filed: September 23, 2015
    Publication date: August 24, 2017
    Applicants: MERCK SHARP & DOHME CORP., MSD R&D (CHINA) CO., LTD.
    Inventors: JIAQIANG CAI, VINCENT COLANDREA, ALEJANDRO CRESPO, JOHN DEBENHAM, XIAOXING DU, DEODIALSINGH GUIADEEN, PING LIU, RONGQIANG LIU, CHRISTINA B. MADSEN-DUGGAN, JOSHUA G. MCCOY, WEIGUO QUAN, CHRISTOPHER SINZ, LIPING WANG
  • INHIBITORS OF HIF PROLYL HYDROXYLASE
    Publication number: 20170233412
    Abstract: The present invention concerns compounds of formula I or pharmaceutically acceptable salts thereof, which inhibit HIF prolyl hydroxylase, their use for enhancing endogenous production of erythropoietin, and for treating conditions associated with reduced endogenous production of erythropoietin such as anemia and like conditions, as well as pharmaceutical compositions comprising such a compound and a pharmaceutical carrier.
    Type: Application
    Filed: September 23, 2015
    Publication date: August 17, 2017
    Applicants: MERCK SHARP & DOHME CORP., MSD R&D (CHINA) CO., LTD.
    Inventors: JIAQIANG CAI, ALEJANDRO CRESPO, XIAOXING DU, BYRON GABRIEL DUBOIS, DEODIALSINGH GUIADEEN, SHANKARAN KOTHANDARAMAN, PING LIU, RONGQIANG LIU, WEIGUO QUAN, CHRISTOPHER SINZ, LIPING WANG
  • INHIBITORS OF HIF PROLYL HYDROXYLASE
    Publication number: 20170226120
    Abstract: The present invention concerns compounds of formula I or pharmaceutically acceptable salts thereof, which inhibit HIF prolyl hydroxylase, their use for enhancing endogenous production of erythropoietin, and for treating conditions associated with reduced endogenous production of erythropoietin such as anemia and like conditions, as well as pharmaceutical compositions comprising such a compound and a pharmaceutical carrier.
    Type: Application
    Filed: September 23, 2015
    Publication date: August 10, 2017
    Applicants: MERCK SHARP & DOHME CORP., MSD R&D (CHINA) CO., LTD.
    Inventors: JIAQIANG CAI, ALEJANDRO CRESPO, XIAOXING DU, BYRON GABRIEL DUBOIS, PING LIU, RONGQIANG LIU, WEIGUO QUAN, CHRISTOPHER SINZ, LIPING WANG