Patents by Inventor Xing-Ping Liu

Xing-Ping Liu 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).

  • Publication number: 20010051629
    Abstract: A novel carbonyl-substituted quinazoline, preferably 4-(3′-bromobenzoyl)-6,7-dimethoxyquinazoline (WHI-P164), and methods for lowering blood cholesterol, including reducing total cholesterol and LDL-cholesterol levels by administration of the carbonyl quinazolines and compositions thereof.
    Type: Application
    Filed: June 26, 2001
    Publication date: December 13, 2001
    Applicant: Hughes Institute
    Inventors: Fatih M. Uckun, Vuong N. Trieu, Xing-Ping Liu
  • Publication number: 20010044442
    Abstract: The invention provides novel JAK-3 inhibitors that are useful for treating leukemia and lymphoma. The compounds are also useful to treat or prevent skin cancer, as well as sunburn and UVB-induced skin inflammation. In addition, the compounds of the present invention prevent the immunosuppressive effects of UVB radiation, and are useful to treat or prevent autoimmune diseases, inflammation, and transplant rejection. The invention also provides pharmaceutical compositions comprising compounds of the invention, as well as therapeutic methods for their use.
    Type: Application
    Filed: March 19, 2001
    Publication date: November 22, 2001
    Applicant: Parker Hughes Institute
    Inventors: Fatih M. Uckun, Elise A. Sudbeck, Marina Cetkovic, Ravi Malaviya, Xing-Ping Liu
  • Patent number: 6316454
    Abstract: 6,7-Dimethoxy-4-anilinoquinaozolines of the formula: or pharmaceutically acceptable acid addition salts thereof are disclosed. These novel compounds are useful for inducing apoptosis and preventing metastases of brain tumor cells.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: November 13, 2001
    Assignee: Parker Hughes Institute
    Inventors: Fatih M. Uckun, Rama Krishna Narla, Xing-Ping Liu
  • Patent number: 6313129
    Abstract: The invention provides novel JAK-3 inhibitors that are useful for treating leukemia and lymphoma. The compounds are also useful to treat or prevent skin cancer, as well as sunburn and UVB-induced skin inflammation. In addition, the compounds of the present invention prevent the immunosuppressive effects of UVB radiation, and are useful to treat or prevent autoimmune diseases, inflammation, and transplant rejection. The invention also provides pharmaceutical compositions comprising compounds of the invention, as well as therapeutic methods for their use.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: November 6, 2001
    Assignee: Hughes Institute
    Inventors: Fatih M. Uckun, Elise A. Sudbeck, Marina Cetkovic, Ravi Malaviya, Xing-Ping Liu
  • Publication number: 20010016588
    Abstract: Quinazoline compounds and methods for the treatment of cancer and for the treatment of allergic reactions.
    Type: Application
    Filed: February 8, 2001
    Publication date: August 23, 2001
    Applicant: Hughes Institute
    Inventors: Fatih M. Uckun, Xing-Ping Liu, Rama Krishna Narla
  • Publication number: 20010008894
    Abstract: A novel carbonyl-substituted quinazoline, preferably 4-(3′-bromobenzoyl)-6,7-dimethoxyquinazoline (WHI-P164), and methods for lowering blood cholesterol, including reducing total cholesterol and LDL-cholesterol levels by administration of the carbonyl quinazolines and compositions thereof.
    Type: Application
    Filed: March 12, 2001
    Publication date: July 19, 2001
    Applicant: Hughes Institute
    Inventors: Fatih M. Uckun, Vuong N. Trieu, Xing-Ping Liu
  • Patent number: 6262053
    Abstract: Novel pharmaceutical compositions including melamine derivatives and methods for the treatment of cancer including prostate, brain, breast, and leukemia are described. The methods are directed to administering a therapeutically effective amount of a pharmaceutical composition including melamine derivatives having potent cytotoxic activity.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: July 17, 2001
    Assignee: Parker Hughes Institute
    Inventors: Faith M. Uckun, Xing-Ping Liu, Rama Narla
  • Patent number: 6258820
    Abstract: Compounds of the formula: wherein: Ra is iodo, (C1-C4)hydroxyalkyl, benzyloxy, OCF3, SCF3, SO3H, SO2F, SO2NR2R3 where R2 is hydrogen or (C1-C4)alkyl and R3 is hydrogen, (C1-C4)alkyl, or phenyl, NR2R4 where R2 is hydrogen or (C1-C4)alkyl and R4 is phenyl; or a group of the formula wherein R5 and R6 are each independently, hydrogen, (C1-C4)alkyl, or (C1-C4) perfluoroalkyl, and R7 is hydrogen, halo, hydroxy, (C1-C4)alkyl, (C1-C4)alkoxy, (C1-C4)hydroxyalkyl, or N(R2)2, where R2 is hydrogen or (C1-C4)alkyl; n is an integer of 1-4; Rb is each, independently, hydrogen, halo, hydroxy, mercapto, (C1-C4)alkyl, (C1-C4)alkoxy, (C1-C4)thioalkyl, (C1-C4)hydroxyalkyl, nitro, cyano, methylenedioxy, ethylenedioxy, COCH3, CF3, OCF3, SCF3, COOH, SO3H, SO2F, phenyl, or phenyl substituted by a group selected from halo, hydroxy, mercapto, (C1-C4)alkyl, (C1-C4) alkoxy, (C1-C4)thioalkyl, (C1-C4)hydroxyalkyl, amino, nitro, cyano, CF3, COOH, SO3H, SO2NR2R3, SO2F where R2 is H or (C1-C4)alkyl and
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: July 10, 2001
    Assignee: Parker Hughes Institute
    Inventors: Faith M. Uckun, Xing-Ping Liu, Rama Krishna Narla
  • Patent number: 6191123
    Abstract: Novel organic arsenic compounds are described as cytotoxic agents with potent anti-tumor activity against cancer cells and particularly, with regard to human leukemic cells and breast cancer cells.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: February 20, 2001
    Assignee: Parker Hughes Institute
    Inventors: Fatih M. Uckun, Xing-Ping Liu
  • Patent number: 6172071
    Abstract: A novel carbonyl-substituted quinazoline, preferably 4-(3′-bromobenzoyl)-6,7-dimethoxyquinazoline (WHI-P164), and methods for lowering blood cholesterol, including reducing total cholesterol and LDL-cholesterol levels by administration of the carbonyl quinazolines and compositions thereof.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: January 9, 2001
    Assignee: Hughes Institute
    Inventors: Faith M. Uckun, Vuong N. Trieu, Xing-Ping Liu