Patents by Inventor Jiban Kumar Chakrabarti

Jiban Kumar Chakrabarti 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).

  • Process for preparing 2-methyl-thieno-benzodiazepine
    Patent number: 6008216
    Abstract: 2-Methyl-4-(4-methyl-1-piperazinyl)-10H-thieno-[2,3-b][1,5]benzodiazepine, or an acid salt thereof, has pharmaceutical properties, and is of particular use in the treatment of disorders of the central nervous system.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: December 28, 1999
    Assignee: Eli Lilly And Company and Limited
    Inventors: Jiban Kumar Chakrabarti, Terrence Michael Hotten, David Edward Tupper
  • Methods of treatment using a thieno-benzodiazepine
    Patent number: 5817655
    Abstract: 2-Methyl-4-(4-methyl-1-piperazinyl)-10H-thieno -?2,3-b!?1,5!benzodiazepine, or an acid salt thereof, has pharmaceutical properties, and is of particular use in the treatment of disorders of the central nervous system.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: October 6, 1998
    Assignees: Eli Lilly and Company, Eli Lilly and Company Limited
    Inventors: Jiban Kumar Chakrabarti, Terrence Micharl Hotten, David Edward Tupper
  • Mental disorders
    Patent number: 5817656
    Abstract: 2-Methyl-4-(4-methyl-1-piperazinyl)-10H-thieno-?2,3-b!?1,5!benzodiazepine, or an acid salt thereof, has pharmaceutical properties, and is of particular use in the treatment of mental disorders.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: October 6, 1998
    Assignees: Eli Lilly and Company, Eli Lilly and Company Limited
    Inventors: Charles M. Beasley, Jr., Jiban Kumar Chakrabarti, Terrence Michael Hotten, David Edward Tupper
  • Psychoactive substance disorders
    Patent number: 5817657
    Abstract: 2-Methyl-4-(4-methyl-1-piperazinyl)-10H-thieno-?2,3-b!?1,5!benzodiazepine, or an acid salt thereof, has pharmaceutical properties, and is of particular use in the treatment of disorders relating to the use of psychoactive substances.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: October 6, 1998
    Assignees: Eli Lilly and Company, Eli Lilly and Company Limited
    Inventors: Charles M. Beasley, Jr., Jiban Kumar Chakrabarti, Terrence Michael Hotten, David Edward Tupper
  • Benzodiazepine compounds and their use as pharmaceuticals
    Patent number: 4977150
    Abstract: Pharmaceutical thiazolo-[1,5]benzodiazepines of the formula ##STR1## in which R.sup.1, R.sup.2 , R.sup.3 and R.sup.4 are independently hydrogen, C.sub.1-4 alkyl, C.sub.2-4 alkenyl, halogen, C.sub.1-4 haloalkyl, nitro, C.sub.1-4 alkoxy, C.sub.1-4 haloalkoxy, C.sub.1-4 alkylthio or phenylsulphonyl; in which R.sup.5 is a group of the formula ##STR2## where R.sup.7 is hydrogen, C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl C.sub.1-4 alkyl, benzyl or ZO-C.sub.2-6 alkyl wherein Z is hydrogen or an acyl group, R.sup.8 is hydrogen or C.sub.1-4 alkyl and n is 0 or 1, provided that when R.sup.7 is hydrogen n is 0; in which R.sup.6 is hydrogen, C.sub.1-10 alkyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkyl C.sub.1-4 alkyl, C.sub.1-4 haloalkyl, C.sub.1-4 alkoxy or C.sub.1-4 alkylthio; and in which ##STR3## represents a thiazole ring selected from ##STR4## and acid addition salts thereof. The compounds have cental nervous system activity.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: December 11, 1990
    Assignee: Lilly Industries Limited
    Inventors: Jiban Kumar Chakrabarti, Terrence M. Hotten
  • Thieno[3,2-b]-[1,5]benzodiazepines
    Patent number: 4115568
    Abstract: Thieno[1,5]benzodiazepines having useful CNS activity containing the novel tricyclic ring system: ##STR1## the 10-position being substituted by an amino, preferably a piperazino, group.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: September 19, 1978
    Assignee: Lilly Industries Limited
    Inventors: Jiban Kumar Chakrabarti, David Edward Tupper
  • Benzodiazepine derivatives
    Patent number: 4115574
    Abstract: Thieno[1,5]benzodiazepines having useful CNS activity containing the novel tricyclic ring system: ##STR1## the 10-position being substituted by an amino, preferably a piperazino, group.
    Type: Grant
    Filed: June 1, 1977
    Date of Patent: September 19, 1978
    Assignee: Lilly Industries Limited
    Inventors: Jiban Kumar Chakrabarti, David Edward Tupper
  • Halogenated amino methyl adamantane derivatives
    Patent number: 4061774
    Abstract: Novel 2-substituted-1-methylamino adamantanes of formula: ##STR1## where X is hydroxyl or halogeno, and R.sup.1, R.sup.2 and R.sup.3 are hydrogen or C.sub.1-4 alkyl or R.sup.2 and R.sup.3 together with the nitrogen form a heterocyclic ring, having anti-Parkinsonian activity, pharmaceutical formulations containing the active adamantanes and novel 4-protoadamantane spiro oxirane and 1,2-difunctionalized intermediates useful in the preparation of the final products of the invention.
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: December 6, 1977
    Assignee: Lilly Industries, Limited
    Inventors: Jiban Kumar Chakrabarti, Terrence Michael Hotten, David Edward Tupper
  • Process for preparing 2-methyl-thieno-benzodiazepine
    Patent number: RE40033
    Abstract: 2-Methyl-4-(4-methyl-1-piperazinyl)-10H-thieno-[2,3-b][1,5]benzodiazepine, or an acid salt thereof, has pharmaceutical properties, and is of particular use in the treatment of disorders of the central nervous system.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: January 22, 2008
    Assignee: Eli Lilly and Company
    Inventors: Reba Chakrabarti, Terrence Michael Hotten, David Edward Tupper, Jiban Kumar Chakrabarti