Patents by Inventor Dharam Vir

Dharam Vir 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: 20240050598
    Abstract: The present invention relates to a stable pharmaceutical composition of tetrofosmin or pharmaceutically acceptable salts thereof. It also relates to a lyophilized non-radioactive kit which upon reconstitution with 99mTc-pertechnetate solution gives a stable 99mTc-tetrofosmin radiopharmaceutical composition. It also provides process for the preparation of said radiopharmaceutical compositions and their use in diagnostic imaging procedures. The compositions provide desirable technical attributes such as stability, high radiochemical purity (RCP) and desired bio-distribution.
    Type: Application
    Filed: September 27, 2023
    Publication date: February 15, 2024
    Applicant: Jubilant Draximage Inc.
    Inventors: Umamaheshwar M. Prasad, Harmik Sohi, Rahul Hasija, Dinesh Kumar, Kamal S. Mehta, Raj Vijaya Kuniyil Kulangara, Ashutosh Agarwal, Dharam Vir
  • Patent number: 11857647
    Abstract: The present invention relates to a stable pharmaceutical composition of tetrofosmin or pharmaceutically acceptable salts thereof. It also relates to a lyophilized non-radioactive kit which upon reconstitution with 99mTc-pertechnetate solution gives a stable 99mTc-tetrofosmin radiopharmaceutical composition. It also provides process for the preparation of said radiopharmaceutical compositions and their use in diagnostic imaging procedures. The compositions provide desirable technical attributes such as stability, high radiochemical purity (RCP) and desired bio-distribution.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: January 2, 2024
    Inventors: Umamaheshwar M. Prasad, Harmik Sohi, Rahul Hasija, Dinesh Kumar, Kamal S. Mehta, Raj Vijaya Kuniyil Kulangara, Ashutosh Agarwal, Dharam Vir
  • Publication number: 20210361785
    Abstract: The present invention relates to stable pharmaceutical compositions of sulfur colloid, which advantageously provide a high radiochemical purity to 99mTc-pertechnetate without causing the gel formation. The compositions include pre-lyophilized and lyophilized compositions of sulfur colloid. It also relates to a non-radioactive kit which upon reconstitution with 99mTc-pertechnetate solution gives stabilized 99mmTc-Sulfur colloid radiopharmaceutical composition. Further, the process for preparation of said compositions and their use for diagnostic purposes are also disclosed.
    Type: Application
    Filed: October 7, 2019
    Publication date: November 25, 2021
    Applicant: Jubilant Generics Limited
    Inventors: Sanjeev Kumar, Rajesh Kumar, Brijesh Kumar Shukla, Rajendra Singh Shekhawat, Sujay Biswas, Dharam Vir, Nirmal Kumar, Indranil Nandi
  • Publication number: 20210145987
    Abstract: The present invention relates to a stable pharmaceutical composition of tetrofosmin or pharmaceutically acceptable salts thereof. It also relates to a lyophilized non-radioactive kit which upon reconstitution with 99mTc-pertechnetate solution gives a stable 99mTc-tetrofosmin radiopharmaceutical composition. It also provides process for the preparation of said radiopharmaceutical compositions and their use in diagnostic imaging procedures. The compositions provide desirable technical attributes such as stability, high radiochemical purity (RCP) and desired bio-distribution.
    Type: Application
    Filed: November 22, 2018
    Publication date: May 20, 2021
    Applicant: Jubilant Generics Limited
    Inventors: Umamaheshwar M. Prasad, Harmik Sohi, Rahul Hasija, Dinesh Kumar, Kamal S. Mehta, Raj Vijaya Kuniyil Kulangara, Ashutosh Agarwal, Dharam Vir
  • Patent number: 10889549
    Abstract: The invention relates to a commercially viable, cost effective and energy efficient process for the preparation of 2-(1H-Imidazol-4-yl)ethanamine or pharmaceutically acceptable salts thereof in high purity and yield via application of continuous flow technology.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: January 12, 2021
    Inventors: Sanjeev Kumar, Rajesh Kumar, Brijesh Kumar Shukla, Rajendra Singh Shekhawat, Sujay Biswas, Dharam Vir, Nirmal Kumar, Indranil Nandi
  • Patent number: 10836781
    Abstract: The present invention relates to an improved process for the preparation of tetrofosmin or acid addition salt thereof. The present invention also relates to the process for the preparation of tetrofosmin disulfosalicylate salt. Further the present invention also provides the polymorphic form J of disulfosalicylate salt of tetrofosmin.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: November 17, 2020
    Assignee: JUBILANT GENERICS LIMITED
    Inventors: Mokkapati Umamaheshwar Prasad, Anjul Kumar, Shishupal Singh, Dharam Vir
  • Publication number: 20200131137
    Abstract: The invention relates to a commercially viable, cost effective and energy efficient process for the preparation of 2-(1H-Imidazol-4-yl)ethanamine or pharmaceutically acceptable salts thereof in high purity and yield via application of continuous flow technology.
    Type: Application
    Filed: January 2, 2020
    Publication date: April 30, 2020
    Applicant: Jubilant Generics Limited
    Inventors: Sanjeev Kumar, Rajesh Kumar, Brijesh Kumar Shukla, Rajendra Singh Shekhawat, Sujay Biswas, Dharam Vir, Nirmal Kumar, Indranil Nandi
  • Publication number: 20190382423
    Abstract: The present invention relates to an improved process for the preparation of tetrofosmin or acid addition salt thereof. The present invention also relates to the process for the preparation of tetrofosmin disulfosalicylate salt. Further the present invention also provides the polymorphic form J of disulfosalicylate salt of tetrofosmin.
    Type: Application
    Filed: November 20, 2017
    Publication date: December 19, 2019
    Inventors: Mokkapati Umamaheshwar PRASAD, Anjul KUMAR, Shishupal SINGH, Dharam VIR
  • 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
  • Patent number: 10252986
    Abstract: The present invention provides an improved process for the preparation of exametazime, which is used as ligand in preparation of technetium-99m complex.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: April 9, 2019
    Assignee: JUBILANT GENERICS LIMITED
    Inventors: Sujay Biswas, Vikas Bansal, Rohit Chakravarty, Mokkapati Umamaheshwar Prasad, Mukesh Masand, Dharam Vir
  • Patent number: 10176943
    Abstract: A switch includes an insulating base having an upper surface and an assembly having a mounting surface. The assembly configured to be arranged on the insulating base, the assembly having a lower surface, the assembly being configured to be arranged on the upper surface of the insulating base with an open space between the lower surface of the assembly and the upper surface of the insulating base. The switch further includes a plurality of fixed contact units mounted in an aligned arrangement on the mounting surface of the assembly and a movable contactor mounted to move within the bore of the insulating body and the electrical contacts of the plurality of fixed contact units.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: January 8, 2019
    Assignee: SPX Transformer Solutions, Inc.
    Inventors: Thomas Golner, Jeffrey J. Nemec, Dharam Vir
  • Patent number: 9932336
    Abstract: The present invention relates to an improved process for the preparation of Apixaban and intermediates thereof. Further the present invention also relates to novel intermediate of Formula V and its process for the preparation.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: April 3, 2018
    Assignee: JUBILANT GENERICS LIMITED
    Inventors: Khushwant Singh, Amit Kumar Srivastava, Ratnakar Tripathi, Jai Prakash Verma, Dharam Vir, Lalit Kumar, Mukesh Masand, Rajendra Singh Shekhawat, Rakesh Tiwari, Sujay Biswas
  • Publication number: 20170313699
    Abstract: The present invention relates to an improved process for the preparation of Apixaban and intermediates thereof. Further the present invention also relates to novel intermediate of Formula V and its process for the preparation.
    Type: Application
    Filed: October 20, 2015
    Publication date: November 2, 2017
    Applicant: JUBILANT GENERICS LIMITED
    Inventors: Khushwant SINGH, Amit Kumar SRIVASTAVA, Ratnakar TRIPATHI, Jai Prakash VERMA, Dharam VIR, Lalit KUMAR, Mukesh MASAND, Rajendra Singh SHEKHAWAT, Rakesh TIWARI, Sujay BISWAS
  • 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
  • Publication number: 20170066728
    Abstract: The invention relates to a process of preparation of enantiomerically pure Linezolid Form-I comprising converting a substantially enantiomerically pure linezolid hydroxide compound of formula II to Linezolid Form I compound of formula I.
    Type: Application
    Filed: November 18, 2016
    Publication date: March 9, 2017
    Inventors: Sujay BISWAS, Atulya Kumar PANDA, Ashish Kumar GUPTA, Shishupal SINGH, Praveen TIWARI, Dharam VIR, Saji THOMAS
  • Publication number: 20170015620
    Abstract: The present invention provides an improved process for the preparation of exametazime, which is used as ligand in preparation of technetium-99m complex.
    Type: Application
    Filed: March 17, 2015
    Publication date: January 19, 2017
    Inventors: Sujay BISWAS, Vikas BANSAL, Rohit CHAKRAVARTY, Mokkapati Umamaheshwar PRASAD, Mukesh MASAND, Dharam VIR
  • Patent number: 9346760
    Abstract: The present invention provides a novel process for the preparation of substituted optically pure (S)-(+)- or (R)-(?)-10-hydroxy-dihydrodibenz[b,f]azepines or derivatives thereof, starting from 10,11-dihydro-10-oxo-5H-dibenz[b,f]azepines using boronate esters or their derivatives. The present invention also provides use of thus prepared (S)-(+)- or (R)-(?)-10-hydroxy-dihydrodibenz[b,f]azepines for the preparation of their ester such as (S)-(?)-10-acetoxy-10,11-dihydro-5H-dibenz[b,f]azepine-5-carboxamide or (R)-(+)-10-acetoxy-10,11-dihydro-5H-dibenz[b,f]azepine-5-carboxamide. The present invention also provides novel solid state crystalline forms J1, J2, J3, J4 and amorphous form of eslicarbazepine and the process for the preparation thereof. Also, the present invention provides novel solid state crystalline form and amorphous form of eslicarbazepine acetate and the process for the preparation thereof.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: May 24, 2016
    Assignee: JUBILANT LIFE SCIENCES LIMITED
    Inventors: Sujay Biswas, Shailendra Kumar Dubey, Vikas Bansal, Mukesh Masand, 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: 9056816
    Abstract: The present invention provides a novel process and novel intermediates useful in the synthesis of pharmaceutically active compounds, especially renin inhibitors, such as Aliskiren, or a salt thereof, preferably Aliskiren hemifumarate.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: June 16, 2015
    Assignee: JUBILANT LIFE SCIENCES LIMITED
    Inventors: Sujay Biswas, Sankareswaran Srimurugan, Anjul Kumar, Atulya Kumar Panda, Danish Jamshad, Mukesh Masand, Bidyut Biswas, Vikas Bansal, Ashish Kumar Gupta, Dharam Vir
  • Publication number: 20150025236
    Abstract: The invention relates to a substantially pure linezolid hydroxide having R-isomer content more than about 99.9% relative to its S-isomer. Further aspect of invention provides the ambient moisture condition, which is critical for enantiomeric pure linezolid hydroxide. The obtained substantially enantiomerically pure linezolid hydroxide compound of formula-II can be subsequently converted into the linezolid compound of formula-I, having S-isomer content more than 99.9% relative to R-isomer. Further the invention provides an improved process for preparation of enantiomeric pure linezolid Form-I, wherein linezolid Form-I having the purity more than 99.9% relative to any other known polymorphic form of linezolid. The obtained enantiomeric pure linezolid Form-I can be subsequently converted into the other known polymorphic forms linezolid. The invention also provides stable and substantially solvent-free crystal of Form-I of linezolid.
    Type: Application
    Filed: January 22, 2013
    Publication date: January 22, 2015
    Inventors: Sujay Biswas, Atulya Kumar Panda, Ashish Kumar Gupta, Shishupal Singh, Praveen Tiwari, Dharam Vir, Saji Thomas