Patents by Inventor Umakant Devdas Shenoy

Umakant Devdas Shenoy 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: 4089953
    Abstract: 1,5-Benzodiazocines of the general formula ##STR1## their 5N-oxides, and acid addition salts thereof. In the above formula R.sub.1 =H, Halogen, CF.sub.3, --CN, --NO, C.sub.1-6 alkyl, C.sub.1-6 alkoxy or C.sub.1-6 alkylthio; R.sub.2 =H, C.sub.1-6 alkyl or furyl; R.sub.3 =H, C.sub.1-6 alkyl, hydroxy-(C.sub.1-6 alkyl), C.sub.2-6 alkenyl or benzyl; and R.sub.4 =phenyl, (C.sub.1-6 alkyl)-phenyl, nitrophenyl, halophenyl or pyridyl. Also the production of such compounds from compounds of the benzodiazepine series.
    Type: Grant
    Filed: October 15, 1975
    Date of Patent: May 16, 1978
    Assignee: DDSA Pharmaceuticals
    Inventor: Umakant Devdas Shenoy
  • Patent number: 4065474
    Abstract: Benzodiazepine derivatives having the general formula I: ##STR1## wherein R.sub.1 represents a hydrogen or halogen atom or a trifluoromethyl, cyano, nitro, lower alkyl, lower alkoxy or lower alkyl thio group;R.sub.2 represents a lower alkyl, hydroxy-(lower alkyl), lower alkenyl or benzyl group;R.sub.3 represents a lower alkyl or substituted lower alkyl group; and--A-- represents a grouping of the general formula: ##STR2## in which R.sub.4 represents a phenyl, (lower alkyl)-phenyl, nitrophenyl, halophenyl or pyridyl group which have sedation and hypnotic activity and a method for their preparation.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: December 27, 1977
    Assignee: DDSA Pharmaceuticals Limited
    Inventor: Umakant Devdas Shenoy
  • Patent number: 4061745
    Abstract: Novel aldehyde adducts of 1,4-benzodiazepines-4-oxides, novel azeto-[1,4]-benzodiazepine derivatives derived therefrom, acid addition salts thereof and methods for their preparation. The aldehyde adducts have the general formula I; the azeto-[1,4]-benzodiazepine derivatives have the general formula III.
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: December 6, 1977
    Assignee: DDSA Pharmaceuticals Ltd.
    Inventor: Umakant Devdas Shenoy
  • Patent number: 4060608
    Abstract: Novel 2-disubstituted amino 3H-1,4-benzodiazepines and their 4-oxides, acid addition salts thereof and a method for their preparation from 2-monosubstituted amino benzodiazepines and their 4-oxides.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: November 29, 1977
    Assignee: DDSA Pharmaceuticals
    Inventor: Umakant Devdas Shenoy
  • Patent number: 4006135
    Abstract: Novel 1-hydroxymethyl-2-(N-alkyl-N-hydroxymethyl)amino-1H-1,4-benzodiazepines and their 4-oxides, and acid addition salts thereof. Also a process for their preparation from 2-alkyl-amino-3H-1,4-benzodiazepines and their 4-oxides.
    Type: Grant
    Filed: July 11, 1974
    Date of Patent: February 1, 1977
    Assignee: DDSA Pharmaceuticals
    Inventor: Umakant Devdas Shenoy