Patents by Inventor Wen-Ching Han

Wen-Ching Han 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: 20020137778
    Abstract: The present invention describes compounds of formula I: 1
    Type: Application
    Filed: April 20, 2001
    Publication date: September 26, 2002
    Inventors: Kyoung S. Kim, S. David Kimball, Zhen-Wei Cai, David B. Rawlins, Raj N. Misra, Michael A. Poss, Kevin R. Webster, John T. Hunt, Wen-Ching Han
  • Patent number: 6262096
    Abstract: Compounds of the formula and pharmaceutically acceptable salts thereof. R1 and R2 are independently hydrogen, fluorine or alkyl; R3 is aryl or heteroaryl R4 is alkyl, cycloalkyl, aryl, cycloalkylalkyl, arylalkyl, heteroaryl, heteroarylalkyl, heterocycloalkyl, heterocycloalkylalkyl; m is an integer of 0 to 2; and n is an integer of 1 to 3. The compounds of formula I are protein kinase inhibitors and are useful in the treatment and prevention of proliferative diseases, for example, cancer, inflammation and arthritis. They may also be useful in the treatment of neurodegenerative diseases such as Alzheimer's disease, cardiovascular diseases, viral diseases and fungal diseases.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: July 17, 2001
    Assignee: Bristol-Myers Squibb Company
    Inventors: Kyoung S. Kim, S. David Kimball, Zhen-wei Cai, David B. Rawlins, Raj N. Misra, Michael A. Poss, Kevin R. Webster, John T. Hunt, Wen-Ching Han
  • Patent number: 6040321
    Abstract: Compounds of the formula ##STR1## and pharmaceuticaly acceptable salts thereof. As used in formula I, and throughout the specification, the symbols have the following meanings:R.sub.1 and R.sub.2 are independently hydrogen, fluorine or alkyl;R.sub.3 is aryl or heteroarylR.sub.4 is hydrogen, alkyl, cycloalkyl, aryl, cycloalkylalkyl, arylalkyl, heteroaryl, heteroarylalkyl, heterocycloalkyl, heterocycloalkylalkyl; orCO-alkyl,CONH-alkyl,COO-alkyl,SO.sub.2 -alkyl,C(NCN)NH-alkyl,C(NNO.sub.2)NH-alkyl,C(NH)NH-alkyl,C(NH)NHCO-alkyl,C(NOR.sub.6)NH-alkyl,R.sub.5 is hydrogen or alkyl;R.sub.6 is hydrogen, alkyl, cycloalkyl, aryl, cycloalkylakyl, arylalkyl, heteroaryl, heteroarylalkyl, heterocycloalkyl or heterocycloalkylalkyl;m is an integer of 0 to 2; andn is an integer of 1 to 3.The compounds of formula I are protein kinase inhibitors and are useful in the treatment and prevention of proliferative diseases, for example, cancer, inflammation and arthritis.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: March 21, 2000
    Assignee: Bristol-Myers Squibb Company
    Inventors: Kyoung S. Kim, S. David Kimball, Zhen-wei Cai, David B. Rawlins, Raj N. Misra, Michael A. Poss, Kevin R. Webster, John T. Hunt, Wen-Ching Han
  • Patent number: 5827868
    Abstract: Thromboxane receptor antagonist activity is exhibited by compounds of the formula ##STR1## wherein: V is --(CH.sub.2).sub.m --, --O--, or ##STR2## but if V is --O--or ##STR3## R.sup.3 and R.sup.4 must complete an aromatic ring; W is --(CH.sub.2).sub.2 --, --CH.dbd.CH-- or phenylene;X is a single bond, --CH.dbd.CH--, --(CH.sub.2).sub.n --, or --O--(CH.sub.2).sub.n --; or X is branched alkylene or --O--branched alkylene wherein W is linked to Y through a chain n carbon atoms long;Y is --CO.sub.2 H, --CO.sub.2 alkyl, --CO.sub.2 alkali metal, --CH.sub.2 OH, --CONHSO.sub.2 R.sup.5, --CONHR.sup.6, or --CH.sub.2 -5-tetrazolyl;Z is O or NH;R.sup.3 and R.sup.4 are each independently hydrogen or alkyl or R.sup.3 and R.sup.4 together complete a ring optionally substituted through a ring carbon with a halo, lower alkyl, phenyl, halo (lower alkyl), halophenyl, oxo or hydroxyl group; and the remaining symbols are as defined in the specification.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: October 27, 1998
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Raj N. Misra, Jagabandhu Das, Steven E. Hall, Wen-Ching Han, Philip M. Sher, Philip D. Stein
  • Patent number: 5741792
    Abstract: Heterocyclic thrombin inhibitors are provided which have the structure ##STR1## wherein n, R, R.sup.1, R.sup.2, R.sup.3, G, G.sub.x, R.sup.6 ', Ra, Xa, R.sup.6, Rb, R.sub.3, p, Q, A and R.sup.4 are as defined herein.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: April 21, 1998
    Assignee: Bristol-Myers Squibb Company
    Inventors: Spencer D. Kimball, Jagabandhu Das, Wan Fang Lau, Steven E. Hall, Wen-Ching Han
  • Patent number: 5741799
    Abstract: Heterocyclic thrombin inhibitors are provided which have the structure ##STR1## wherein n, R, R.sup.1, R.sup.2, R.sup.3, G, G.sub.x, R.sup.6', Ra, Xa, R.sup.6, Rb, R.sub.3, p, Q, A and R.sup.4 are as defined herein.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: April 21, 1998
    Assignee: Bristol-Myers Squibb Company
    Inventors: Spencer D. Kimball, Jagabandhu Das, Wan Fang Lau, Steven E. Hall, Wen-Ching Han
  • Patent number: 5583146
    Abstract: Heterocyclic thrombin inhibitors are provided which have the structure ##STR1## wherein n, R, R.sup.1, R.sup.2, R.sup.3, G, G.sub.x, R.sup.6', Ra, Xa, R.sup.6, Rb, R.sub.3, p, Q, A and R.sup.4 are as defined herein.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: December 10, 1996
    Assignee: Bristol-Myers Squibb Company
    Inventors: Spencer D. Kimball, Jagabandhu Das, Wan F. Lau, Steven E. Hall, Wen-Ching Han
  • Patent number: 5561146
    Abstract: Thrombin inhibitors are provided which have the formula ##STR1## wherein Z is a thrombin inhibitor substructure containing distal and proximal binding site residues; andR.sup.1 is cyano, hydroxyl, alkoxy, amino, aminoalkyl or nitro.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: October 1, 1996
    Assignee: Bristol-Myers Squibb Company
    Inventors: Kyoung S. Kim, Spencer D. Kimball, Jagabandhu Das, Edwin J. Iwanowicz, Wen-Ching Han
  • Patent number: 4608386
    Abstract: 7-Oxabicycloheptane substituted ether prostaglandin analogs are provided having the structural formula ##STR1## wherein X is O or ##STR2## and including all stereoisomers thereof. The compounds are cardiovascular agents useful, for example, in the treatment of thrombotic disease.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: August 26, 1986
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Steven E. Hall, Wen-Ching Han