Patents by Inventor Kamal N. Tiwari

Kamal N. Tiwari 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).

  • Patent number: 8859589
    Abstract: Compound represented by the formulae: wherein each R individually is H or aliphatic acyl or aromatic acyl group; X is selected from the group consisting of hydrogen, fluoro, chloro, bromo, iodo, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, cyano, aryl and nitro; pharmaceutically acceptable salts thereof, prodrugs thereof and mixtures thereof are used as inhibitors of orthopoxviruses and for treating patients suffering from an orthopoxvirus infection such as, but not limited to, smallpox, cowpox, monkeypox and camelpox.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: October 14, 2014
    Assignee: Southern Research Institute
    Inventors: John A. Secrist, III, Kamal N. Tiwari, Joseph A. Maddry
  • Publication number: 20120149657
    Abstract: A method of treating cancer using certain 2?-fluoro arabino nucleosides is provided. Also provided are compounds represented by the formula: (I & A) wherein R is alkyl; and pharmaceutically acceptable salts thereof; and pharmaceutical compositions containing these compounds.
    Type: Application
    Filed: May 12, 2010
    Publication date: June 14, 2012
    Applicant: Southern Research Institute
    Inventors: John A. Secrist, III, Anita T. Fowler, Kamal N. Tiwari
  • Publication number: 20120136017
    Abstract: Compound represented by the formulae: wherein each R individually is H or aliphatic acyl or aromatic acyl group; X is selected from the group consisting of hydrogen, fluoro, chloro, bromo, iodo, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, cyano, aryl and nitro; pharmaceutically acceptable salts thereof, prodrugs thereof and mixtures thereof are used as inhibitors of orthopoxviruses and for treating patients suffering from an orthopoxvirus infection such as, but not limited to, smallpox, cowpox, monkeypox and camelpox.
    Type: Application
    Filed: March 12, 2008
    Publication date: May 31, 2012
    Applicant: Southern Research Institute Office of Commercialization and Intellectual Property
    Inventors: John A. Secrist, III, Kamal N. Tiwari, Joseph A. Maddry
  • Patent number: 8178510
    Abstract: Patients suffering from cancer are treated by being administered a compound represented by the following formula: wherein each R individually is H or an aliphatic or aromatic acyl group; A is selected from the group consisting of wherein X is selected from the group consisting of hydrogen, fluorine, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, cyano and nitro. The above compounds also inhibit DNA replication in mammalian cells.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: May 15, 2012
    Assignee: Southern Research Institute
    Inventors: John A. Secrist, III, Kamal N. Tiwari, John A. Montgomery, William L. Hinds, Jr., legal representative
  • Publication number: 20110218170
    Abstract: Compounds represented by the formulae: wherein R is individually selected from the group consisting of H, aliphatic acyl, aromatic acyl group, fluoro, chloro, bromo, iodo, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, cyano, aryl and nitro; pharmaceutically acceptable salts thereof, prodrugs thereof, solvates thereof and mixtures thereof; are used as inhibitors of DNA methyltransferase and for treating patients suffering from diseases resulting from or related to aberrant DNA methylation such as myelodysplastic syndromes and other cancers.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 8, 2011
    Applicant: Southern Research Institute
    Inventors: Jaideep Thottassery, Kamal N. Tiwari, William B. Parker, John A. Secrist, III
  • Patent number: 7838508
    Abstract: Compounds represented by the formula 1: A is selected from the group consisting of wherein each R individually is H or acyl, Y is X, N3, NH2, monoalkylamino, or dialkylamino; Z is O or S; and X is selected from the group consisting of hydrogen, halo, hydroxy, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, thioaryl, thioalkyl, allylamino, cyano and nitro; tautomers thereof; and pharmaceutically acceptable salts thereof are provided along with methods for their fabrication. Various of these compounds can be used as anticancer agents, or antiviral agents or to inhibit DNA replication.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: November 23, 2010
    Assignee: Southern Research Institute
    Inventors: John A. Secrist, III, Kamal N. Tiwari, John A. Montgomery, William L. Hinds, Jr., legal representative
  • Publication number: 20100216797
    Abstract: Patients suffering from cancer are treated by being administered a compound represented by the following formula: wherein each R individually is H or an aliphatic or aromatic acyl group; A is selected from the group consisting of wherein X is selected from the group consisting of hydrogen, fluorine, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, cyano and nitro. The above compounds also inhibit DNA replication in mammalian cells.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 26, 2010
    Applicant: Southern Research Institute
    Inventors: John A. Secrist, III, Kamal N. Tiwari, John A. Montgomery, William L. Hinds, JR.
  • Patent number: 7691820
    Abstract: Patients suffering from cancer are treated by being administered a compound represented by the following formula: wherein each R individually is H or an aliphatic or aromatic acyl group; A is selected from the group consisting of wherein X is selected from the group consisting of hydrogen, fluorine, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, cyano and nitro. The above compounds also inhibit DNA replication in mammalian cells.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: April 6, 2010
    Assignee: Southern Research Institute
    Inventors: John A. Secrist, III, Kamal N. Tiwari, John A. Montgomery, William L Hinds, Jr., legal representative
  • Patent number: 7148223
    Abstract: Compounds represented by the formula 1: A is selected from the group consisting of wherein each R individually is H or acyl, Y is X, N3, NH2, monoalkylamino, or dialkylamino; Z is O or S; and X is selected from the group consisting of hydrogen, halo, hydroxy, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, thioaryl, thioalkyl, allylamino, cyano and nitro; tautomers thereof; and pharmaceutically acceptable salts thereof are provided along with methods for their fabrication. Various of these compounds can be used as anticancer agents, or antiviral agents or to inhibit DNA replication.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: December 12, 2006
    Assignee: Southern Research Institute
    Inventors: John A. Secrist, III, Kamal N. Tiwari, John A. Montgomery
  • Patent number: 7138385
    Abstract: Patients suffering from cancer are treated by being administered a compound represented by the following formula: wherein each R individually is H or an aliphatic or aromatic acyl group; A is selected from the group consisting of wherein X is selected from the group consisting of hydrogen, fluorine, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, cyano and nitro. The above compounds also inhibit DNA replication in mammalian cells.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: November 21, 2006
    Assignee: Southern Research Institute
    Inventors: John A. Secrist, III, Kamal N. Tiwari, John A. Montgomery
  • Patent number: 6914061
    Abstract: Compounds represented by the formula 1: A is selected from the group consisting of wherein each R individually is H or acyl, Y is X, N3, NH2, monoalkylamino, or dialkylamino; Z is O or S; and X is selected from the group consisting of hydrogen, halo, hydroxy, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, thioaryl, thioalkyl, allylamino, cyano and nitro; tautomers thereof; and pharmaceutically acceptable salts thereof are provided along with methods for their fabrication. Various of these compounds can be used as anticancer agents, or antiviral agents or to inhibit DNA replication.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: July 5, 2005
    Assignee: Southern Research Institute
    Inventors: John A. Secrist, III, Kamal N. Tiwari, John A. Montgomery
  • Patent number: 6870052
    Abstract: Patients suffering from cancer are treated by being administered a compound represented by the following formula: wherein each R individually is H or an aliphatic or aromatic acyl group; A is selected from the group consisting of wherein X is selected from the group consisting of hydrogen, fluorine, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, cyano and nitro. The above compounds also inhibit DNA replication in mammalian cells.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: March 22, 2005
    Assignee: Southern Research Institute
    Inventors: John A. Secrist, III, Kamal N. Tiwari, John A. Montgomery
  • Publication number: 20030203872
    Abstract: Patients suffering from cancer are treated by being administered a compound represented by the following formula: 1
    Type: Application
    Filed: April 7, 2003
    Publication date: October 30, 2003
    Inventors: John A. Secrist, Kamal N. Tiwari, John A. Montgomery
  • Publication number: 20030144235
    Abstract: Compounds represented by the formula 1: 1
    Type: Application
    Filed: September 9, 2002
    Publication date: July 31, 2003
    Inventors: John A. Secrist, Kamal N. Tiwari, John A. Montgomery
  • Patent number: 6576621
    Abstract: Patients suffering from cancer are treated by being administered a compound represented by the following formula: wherein each R individually is H or an aliphatic or aromatic acyl group; A is selected from the group consisting of wherein X is selected from the group consisting of hydrogen, fluorine, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, cyano and nitro.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: June 10, 2003
    Assignee: Southern Research Institute
    Inventors: John A. Secrist, III, Kamal N. Tiwari, John A. Montgomery
  • Patent number: 5688774
    Abstract: The present invention provides A.sub.3 selective agonists, particularly, adenine compounds having selected substituents at the 2, 6, and 9 positions, and related substituted compounds, particularly those containing substituents on the benzyl and/or uronamide groups, as well as pharmaceutical compositions containing such compounds. The present invention also provides a method of selectively activating an A.sub.3 adenosine receptor in a mammal, which method comprises acutely or chronically administering to a mammal in need of selective activation of its A.sub.3 adenosine receptor a therapeutically or prophylactically effective amount of a compound which binds with the A.sub.3 receptor so as to stimulate an A.sub.3 receptor-dependent response.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: November 18, 1997
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Kenneth A. Jacobson, Heaok Kim Jeong, Suhaib M. Siddiqi, Carl R. Johnson, John A. Secrist, III, Kamal N. Tiwari