Patents by Inventor Alka Srivastava

Alka Srivastava 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: 10426770
    Abstract: Disclosed herein is an improved process for the preparation of Lurasidone and its pharmaceutically acceptable salts via novel intermediate and use thereof for the preparation of an antipsychotic agent useful for the treatment of schizophrenia and bipolar disorder. Further, present invention provides a cost effective and eco-friendly process for producing Lurasidone hydrochloride of formula (I) substantially free of residual solvent(s) at industrial scale.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: October 1, 2019
    Assignee: Jubilant Generics Limited
    Inventors: Vaibhav Mishra, Shailendr Dubey, Kumber Singh, Alka Srivastava Choudhary, Dharam Vir
  • Publication number: 20170246165
    Abstract: Disclosed herein is an improved process for the preparation of Lurasidone and its pharmaceutically acceptable salts via novel intermediate and use thereof for the preparation of an antipsychotic agent useful for the treatment of schizophrenia and bipolar disorder. Further, present invention provides a cost effective and eco-friendly process for producing Lurasidone hydrochloride of formula (I) substantially free of residual solvent(s) at industrial scale.
    Type: Application
    Filed: October 9, 2015
    Publication date: August 31, 2017
    Inventors: Vaibhav MISHRA, Shailendr DUBEY, Kumber SINGH, Alka Srivastava CHOUDHARY, Dharam VIR
  • Patent number: 9233955
    Abstract: The present invention relates to an improved process for the preparation of azilsartan or its esters or salts thereof. Specifically, the invention provides a method for the preparation of highly pure methyl 1-[[2?-(4,5-dihydro-5-oxo-4H-1,2,4-oxa-diazol-3-yl)biphenyl-4-yl]methyl]-2-ethoxy-1H-benzimidazole-7-carboxylate an intermediate compound of formula (4) for azilsartan medoxomil with reduced content of desethyl impurity. The invention also involves the use of highly pure methyl 1-[[2?-(4,5-dihydro-5-oxo-4H-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl]-2-ethoxy-1H-benzimidazole-7-carboxylate in the preparation of azilsartan or its esters or salts thereof, preferably medoxomil with reduced content of desethyl impurity.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: January 12, 2016
    Assignee: Jubilant Life Sciences, Ltd.
    Inventors: Deepak Bansal, Himanchal Mishra, Shailendr Kumar Dubey, Alka Srivastava Choudhary, Dharam Vir, Ashutosh Agarwal
  • Patent number: 9112638
    Abstract: The OSS provides unique and automated provisioning, activation, fallout management and monitoring of SONET and WDM networks comprising control plane mesh and traditional SONET/WDM Rings/Chains. Resource discovery and dynamic provisioning provides for increased use of network bandwidth. It is possible both all control plane networks and mixed control plane and traditional networks. Network connections or the network topology may be accomplished in a hop-by-hop manner.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: August 18, 2015
    Assignee: Telcordia Technologies, Inc.
    Inventors: Michael A. Reina, Praveen Katiyar, Shakil H. Siddique, Rama Sreedhara, Alka Srivastava, Beverly N. Meyers, Dean Rader, Sriam Subramanian, Maria Croat
  • Publication number: 20130317230
    Abstract: The present invention relates to an improved process for the preparation of azilsartan or its esters or salts thereof. Specifically, the invention provides a method for the preparation of highly pure methyl 1-[[2?-(4,5-dihydro-5-oxo-4H-1,2,4-oxa-diazol-3-yl)biphenyl-4-yl]methyl]-2-ethoxy-1H-benzimidazole-7-carboxylate an intermediate compound of formula (4) for azilsartan medoxomil with reduced content of desethyl impurity. The invention also involves the use of highly pure methyl 1-[[2?-(4,5-dihydro-5-oxo-4H-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl]-2-ethoxy-1H-benzimidazole-7-carboxylate in the preparation of azilsartan or its esters or salts thereof, preferably medoxomil with reduced content of desethyl impurity.
    Type: Application
    Filed: January 24, 2012
    Publication date: November 28, 2013
    Inventors: Deepak Bansal, Himanchal Mishra, Shailendr Kumar Dubey, Alka Srivastava Choudhary, Dharam Vir, Ashutosh Agarwal
  • Publication number: 20130004170
    Abstract: The OSS provides unique and automated provisioning, activation, fallout management and monitoring of SONET and WDM networks comprising control plane mesh and traditional SONET/WDM Rings/Chains. Resource discovery and dynamic provisioning provides for increased use of network bandwidth. It is possible both all control plane networks and mixed control plane and traditional networks. Network connections or the network topology may be accomplished in a hop-by-hop manner.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Applicant: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Michael A. Reina, Praveen Katiyar, Shakil H. Siddique, Rama Sreedhara, Alka Srivastava, Beverly N. Meyers, Dean Rader, Sriam Subramanian, Maria Croat
  • Patent number: 8290367
    Abstract: The OSS provides unique and automated provisioning, activation, fallout management and monitoring of SONET and WDM networks comprising control plane mesh and traditional SONET/WDM Rings/Chains. Resource discovery and dynamic provisioning provides for increased use of network bandwidth. It is possible both all control plane networks and mixed control plane and traditional networks. Network connections or the network topology may be accomplished in a hop-by-hop manner.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: October 16, 2012
    Assignee: Telcordia Technologies, Inc.
    Inventors: Michael A. Reina, Praveen Katiyar, Shakil H. Siddique, Rama Sreedhara, Alka Srivastava, Beverly N. Meyers, Dean Rader, Sriam Subramanian, Maria Croat
  • Publication number: 20090257746
    Abstract: The OSS provides unique and automated provisioning, activation, fallout management and monitoring of SONET and WDM networks comprising control plane mesh and traditional SONET/WDM Rings/Chains. Resource discovery and dynamic provisioning provides for increased use of network bandwidth. It is possible both all control plane networks and mixed control plane and traditional networks. Network connections or the network topology may be accomplished in a hop-by-hop manner.
    Type: Application
    Filed: June 30, 2008
    Publication date: October 15, 2009
    Applicant: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Michael A. Reina, Praveen Katiyar, Shakil H. Siddique, Rama Sreedhara, Alka Srivastava, Beverly N. Meyers, Dean Rader, Sriam Subramanian, Maria Croat