Patents by Inventor Shri Niwas

Shri Niwas 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: 20040162281
    Abstract: Compounds of formula (I) are useful as inhibitors of trypsin like serine protease enzymes such as thrombin, factor VIIa, factor Xa, TF/FVIIa, and trypsin. These compounds could be useful to treat and/or prevent clotting disorders, and as anticoagulating agents.
    Type: Application
    Filed: December 18, 2003
    Publication date: August 19, 2004
    Applicant: BIOCRYST PHARMACEUTICALS, INC.
    Inventors: Yarlagadda S. Babu, R. Scott Rowland, Pooran Chand, Pravin L. Kotian, Yahya El-Kattan, Shri Niwas
  • Publication number: 20040147543
    Abstract: Aryl substituted imidazoquinoline compounds, pharmaceutical compositions containing the compounds, intermediates, and methods of use of these compounds as immunomodulators, for inducing or inhibiting cytokine biosynthesis in animals and in the treatment of diseases including viral, and neoplastic, are disclosed.
    Type: Application
    Filed: December 18, 2003
    Publication date: July 29, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: David S. Hays, Shri Niwas, Tushar Kshirsagar, Tarun K. Ghosh, Shalley K. Gupta, Phillip D. Heppner, Bryon A. Merrill, Jason D. Bonk, Michael E. Danielson, John F. Gerster, Chad A. Haraldson, Sarah Johannessen, Maureen A. Kavanagh, Kyle J. Lindstrom, Ryan B. Prince, Matthew R. Radmer, Michael J. Rice, David J. Squire, Sarah A. Strong, Joshua R. Wurst
  • Patent number: 6699994
    Abstract: Compounds of formula (I) are useful as inhibitors of trypsin like serine protease enzymes such as thrombin, factor VIIa, factor Xa, TF/FVIIa, and trypsin. These compounds could be useful to treat and/or prevent clotting disorders, and as anticoagulating agents.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: March 2, 2004
    Assignee: BioCryst Pharmaceuticals, Inc.
    Inventors: Yarlagadda S. Babu, R. Scott Rowland, Pooran Chand, Pravin L. Kotian, Yahya El-Kattan, Shri Niwas
  • Patent number: 6653340
    Abstract: The present invention is concerned with new compounds, and particularly those having a fused bicyclic ring substituted with an amidine moiety. These compounds are each potent inhibitors of Factor D of the alternate pathway of complement, C1s of the classical pathway of complement, Factors Xa, XIIa, VIIa and thrombin of the coagulation pathway, plasmin in the fibrinolytic pathway, and kallikrein and high molecular weight kininogen in the inflammatory pathways. These proteases, which have serine in their active site, are called serine proteases and they are pivotal to most of the processes of inflammation and coagulation. In fact, these various systems are interactive with one another and it is difficult to activate one pathway without it influencing the others.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: November 25, 2003
    Assignee: BioCryst Pharmaceuticals, Inc.
    Inventors: Yarlagadda S. Babu, J. Claude Bennett, Shri Niwas, R. Scott Rowland
  • Patent number: 5726311
    Abstract: Disclosed is a compound of the formula ##STR1## wherein R.sup.1 is H, NH.sub.2, or OCH.sub.3, R.sup.2 is an optionally substituted cyclic group optionally containing one or more heteroatoms, R.sup.3 and R.sup.4 are independently H or C.sub.1-4 alkyl, m is 0-4, n is 0-6, p is 0.1, X is CN, CSNH.sub.2, PO(OH).sub.2, COOH, SO.sub.2 NH.sub.2, NH.sub.2, OH, CNHNH.sub.2, tetrazole, triazole, or COR.sup.5 where R.sup.5 is C.sub.1-4 alkyl, CF.sub.3, NH.sub.2, or OC.sub.1-4 alkyl, and Y is O or NH that is useful as a pharmaceutical.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 10, 1998
    Assignee: BioCryst Pharmaceuticals, Inc.
    Inventors: Shri Niwas, John A. Secrist, III, John A. Montgomery, Mark David Erion, Wayne C. Guida, Steve E. Ealick
  • Patent number: 5189039
    Abstract: Disclosed is a compound of the formula ##STR1## wherein R.sup.1 is H, NH.sub.2, or OCH.sub.3, R.sup.2 is an optionally substituted cyclic group optionally containing one or more heteroatoms, R.sup.3 and R.sup.4 are independently H or C.sub.1-4 alkyl, m is 0-4, n is 0-6, p is 0.1, X is CN, CSNH.sub.2, PO(OH).sub.2, COOH, SO.sub.2 NH.sub.2, NH.sub.2, OH, CNHNH.sub.2, tetrazole, triazole, or COR.sup.5 where R.sup.5 is C.sub.1-4 alkyl, CF.sub.3, NH.sub.2, or OC.sub.1-4 alkyl, and Y is O or NH that is useful as a pharmaceutical.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: February 23, 1993
    Assignee: BioCryst, Inc.
    Inventors: Shri Niwas, John A. Secrist, III, John A. Montgomery, Mark D. Erion, Wayne C. Guida, Steve E. Ealick
  • Patent number: PP13110
    Abstract: A new and distinct mutant plant of Lippia alba called ‘Bhurakshak,’ characterized by novel aroma of the oil constituting 7.2% 1, 8 cineole, 42.3% linalool, 12.9% citral (b) and 14.2% citral (a) as a major terpenoids, and having a unique RAPD profile as shown in FIG. 1 of the drawings.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: October 22, 2002
    Assignee: Council of Scientific and Industrial Research
    Inventors: Sushil Kumar, Janak Raj Bahl, Ravi Prakash Bansal, Shri Niwas Garg, Arif Ali Naqvi, Suman Preet Singh Khanuja, Ajit Kumar Shasany, Mahendra Pandurang Darokar, Vikram Singh, Sweta Sinha