Patents by Inventor Hemant Kumar Singh

Hemant Kumar Singh 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: 10815227
    Abstract: The present invention relates to processes for the preparation of Filgotinib. The present invention relates to novel processes for the preparation of filgotinib. The present invention also relates to novel intermediates for the preparation of filgotinib.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: October 27, 2020
    Assignee: CADILA HEALTHCARE LIMITED
    Inventors: Sanjay Jagdish Desai, Kuldeep Natwarlal Jain, Naitik Bharatbhai Patel, Hemant Kumar Singh
  • Publication number: 20200062744
    Abstract: The present invention relates to processes for the preparation of Filgotinib. The present invention relates to novel processes for the preparation of filgotinib. The present invention also relates to novel intermediates for the preparation of filgotinib.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 27, 2020
    Inventors: Sanjay Jagdish DESAI, Kuldeep Natwarlal JAIN, Naitik Bharatbhai PATEL, Hemant Kumar SINGH
  • Patent number: 10544109
    Abstract: The present invention relates to an improved process for the preparation of xylene linked cyclam compounds. More particularly the invention provides a process for preparation of high purity plerixafor which does not involve the use of expensive chemicals, hazardous reagents or tedious purification techniques. Invention also provides novel intermediate useful for preparation of desired compound in high purity.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: January 28, 2020
    Assignee: Fresenius Kabi Oncology Ltd.
    Inventors: Hemant Kumar Singh, Sandeep Kumar, Ghanashyam Madhukar Sonavane, Vishal Handa, Chandan Kumar Gupta, Sunil Sanghani, Potru Sivaiah, Saswata Lahiri, Walter Cabri, Nitin Gupta
  • Publication number: 20180324001
    Abstract: The present invention disclosure relates to a system for monitoring deterministic characteristics of a safety critical network. The system has an Ethernet switch associated to a processor-memory unit that runs deterministic unit functionality or a multi-core system in which one or more cores have Ethernet switch functionality and one or more dedicated cores have deterministic unit functionality, a communication channel between the Ethernet switch and the processor-memory unit associated to a deterministic unit or the inter-core communication channel between the core/s running Ethernet switch functionality and the core/s running deterministic unit functionality and an Ethernet virtual connection (EVC) between adjacent switches through which the associated deterministic units communicate with each other.
    Type: Application
    Filed: April 8, 2016
    Publication date: November 8, 2018
    Inventors: Vipin TYAGI, Shishir SHROTRIYA, Prashant CHUGH, Deepika NAGPAL, Hemant Kumar Singh CHAUHAN
  • Publication number: 20180244635
    Abstract: The present invention relates to an improved process for the preparation of xylene linked cyclam compounds. More particularly the invention provides a process for preparation of high purity plerixafor which does not involve the use of expensive chemicals, hazardous reagents or tedious purification techniques. Invention also provides novel intermediate useful for preparation of desired compound in high purity.
    Type: Application
    Filed: September 1, 2016
    Publication date: August 30, 2018
    Applicant: FRESENIUS KABI ONCOLOGY LTD.
    Inventors: Hemant Kumar SINGH, Sandeep KUMAR, Ghanashyam Madhukar SONAVANE, Vishal HANDA, Chandan Kumar GUPTA, Sunil SANGHANI, Potru SIVAIAH, Saswata LAHIRI, Walter CABRI, Nitin GUPTA
  • Patent number: 9440979
    Abstract: An improved process for the preparation of Pralatrexate which is less hazardous. The invention further relates to novel intermediates and process thereof useful for the preparation of Pralatrexate. The present invention also relates to a substantially pure Pralatrexate and a process for obtaining the same in high yield.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: September 13, 2016
    Assignee: FRESENIUS KABI ONCOLOGY LIMITED
    Inventors: Saswata Lahiri, Nitin Gupta, Hemant Kumar Singh, Nilendu Panda, Vishal Handa, Azim Abul, Chandan Kumar Gupta, Sunil Sanghani, Ghanashyam Madhukar Sonavane
  • Publication number: 20150297738
    Abstract: The present invention relates to a hydroxyalkyl starch conjugate and a method for preparing the same, said hydroxyalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent, the cytotoxic agent comprising at least one secondary hydroxyl group, wherein the hydroxyalkyl starch is linked via said secondary hydroxyl group to the cytotoxic agent. The conjugate according to the present invention has a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold.
    Type: Application
    Filed: June 29, 2015
    Publication date: October 22, 2015
    Inventors: Helmut Knoller, Dominik Heckmann, Frank Hacket, Norbert Zander, Frank Nocken, Saswata Lahiri, Nitin Gupta, Sunil Sanghani, Azim Abul, Hemant Kumar Singh, Sandeep Grewal, Sandeep Kaur
  • Publication number: 20150183789
    Abstract: An improved process for the preparation of Pralatrexate which is less hazardous. The invention further relates to novel intermediates and process thereof useful for the preparation of Pralatrexate. The present invention also relates to a substantially pure Pralatrexate and a process for obtaining the same in high yield.
    Type: Application
    Filed: July 18, 2013
    Publication date: July 2, 2015
    Applicant: Fresenius Kabi Oncology Limited
    Inventors: Saswata Lahiri, Nitin Gupta, Hemant Kumar Singh, Nilendu Panda, Vishal Handa, Azim Abul, Chandan Kumar Gupta, Sunil Sanghani, Ghanashyam Madhukar Sonavane
  • Publication number: 20140088298
    Abstract: The present invention relates to a hydroxyalkyl starch conjugate and a method for preparing the same, said hydroxy-yalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent, the cytotoxic agent comprising at least one secondary hydroxyl group, wherein the hydroxyalkyl starch is linked via said secondary hydroxyl group to the cytotoxic agent. The conjugate according to the present invention has a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold.
    Type: Application
    Filed: July 11, 2011
    Publication date: March 27, 2014
    Applicant: Fresenius Kabi Deutschland GmbH
    Inventors: Helmut Knoller, Dominik Heckmann, Frank Hacket, Norbert Zander, Frank Nocken, Saswata Lahiri, Nitin Gupta, Sunil Sanghani, Azim Abul, Hemant Kumar Singh, Sandeep Grewal, Sandeep Kaur
  • Publication number: 20140073779
    Abstract: The present invention relates to a hydroxyalkyl starch conjugate and a method for preparing the same, said hydroxyalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent, the cytotoxic agent comprising at least one secondary hydroxyl group, wherein the hydroxyalkyl starch is linked via said secondary hydroxyl group to the cytotoxic agent. The conjugate according to the present invention has a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold.
    Type: Application
    Filed: July 11, 2011
    Publication date: March 13, 2014
    Applicant: Fresenius Kabi Deutschland GmbH
    Inventors: Helmut Knoller, Dominik Heckmann, Frank Hacket, Norbert Zander, Frank Nocken, Saswata Lahiri, Nitin Gupta, Sunil Sanghani, Azim Abul, Hemant Kumar Singh, Sandeep Grewal, Sandeep Kaur
  • Patent number: 8524893
    Abstract: Novel intermediates, process for their preparation and their use in the preparation of therapeutically effective antineoplastic agents, in particular Temsirolimus of formula (I).
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: September 3, 2013
    Assignee: Fresenius Kabi Oncology Limited
    Inventors: Nitin Gupta, Vishal Handa, Abir Kumar Pal, Hemant Kumar Singh, Saswata Lahiri, Sushil Kumar Dubey
  • Publication number: 20130211060
    Abstract: The present invention relates to a hydroxyalkyl starch conjugate and a method for preparing the same, said hydroxy-yalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent, the cytotoxic agent comprising at least one secondary hydroxyl group, wherein the hydroxyalkyl starch is linked via said secondary hydroxyl group to the cytotoxic agent. The conjugate according to the present invention has a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold.
    Type: Application
    Filed: July 11, 2011
    Publication date: August 15, 2013
    Applicant: Fresenius Kabi Deutschland GmbH
    Inventors: Helmut Knoller, Dominik Heckmann, Frank Hacker, Norbert Zander, Frank Nocken, Saswata Lahiri, Nitin Gupta, Sunil Sanghani, Azim Abul, Hemant Kumar Singh, Sandeep Grewal, Sandeep Kaur
  • Publication number: 20130184455
    Abstract: The present invention relates to a hydroxyalkyl starch conjugate and a method for preparing the same, said hydroxyalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent, the cytotoxic agent comprising at least one secondary hydroxyl group, wherein the hydroxyalkyl starch is linked via said secondary hydroxyl group to the cytotoxic agent. The conjugate according to the present invention has a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold.
    Type: Application
    Filed: July 11, 2011
    Publication date: July 18, 2013
    Applicant: Fresenius Kabi Deutschland GmbH
    Inventors: Helmut Knoller, Dominik Heckmann, Frank Hacket, Norbert Zander, Frank Nocken, Saswata Lahiri, Nitin Gupta, Sunil Sanghani, Azim Abul, Hemant Kumar Singh, Sandeep Grewal, Sandeep Kaur
  • Publication number: 20120277297
    Abstract: The present invention relates to pharmaceutical composition comprising the naturally occurring compounds selected from (±) Marrnesin, Columbianetin, Dihydroxanthyletin and substituted coumarin derivatives of 7-allyloxy coumarin, 7-benzyloxy coumarin, 7 -methoxycoumarin, 7-acetyloxy coumarin, 4-methyl-7-hydroxy coumarin and 4-methyl-7-acetyloxy coumarin. The said compositions possess a high degree of acetylcholinesterase inhibitory (AChE) property.
    Type: Application
    Filed: April 30, 2012
    Publication date: November 1, 2012
    Applicant: Council of Scientific and Industrial Research
    Inventors: Janaswamy Madhusudana Rao, Bhimapaka China Raju, Pullela Venkata Srinivas, Katragadda Suresh Babu, Jhillu Singh Yadav, Kondapuram Vijaya Raghvan, Hemant Kumar Singh, Chandiswar Nath
  • Patent number: 8188143
    Abstract: The present invention relates to pharmaceutical composition comprising the naturally occurring compounds selected from (±) Marmesin, Columbianetin, Dihydroxanthyletin and substituted coumarin derivatives of 7-allyloxy coumarin, 7-benzyloxy coumarin, 7-methoxy coumarin, 7-acetyloxy coumarin, 4-methyl-7-hydroxy coumarin and 4-methyl-7-acetyloxy coumarin. The said compositions posses a high degree of acetylcholinesterase inhibitory (AChE) property.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: May 29, 2012
    Assignee: Council of Scientific and Industrial Research
    Inventors: Janaswamy Madhusudana Rao, Bhimapaka China Raju, Pullela Venkata Srinivas, Katragadda Suresh Babu, Jhillu Singh Yadav, Kondapuram Vijaya Raghvan, Hemant Kumar Singh, Chandiswar Nath
  • Publication number: 20110184167
    Abstract: Novel intermediates, process for their preparation and their use in the preparation of therapeutically effective antineoplastic agents, in particular Temsirolimus of formula (I).
    Type: Application
    Filed: January 28, 2011
    Publication date: July 28, 2011
    Applicant: Fresenius Kabi Oncology Limited
    Inventors: Nitin Gupta, Vishal Handa, Abir Kumar Pal, Hemant Kumar Singh, Saswata Lahiri, Sushil Kumar Dubey
  • Patent number: 6896901
    Abstract: The present invention provides new uses of Gugulipid, an ethyl acetate extract of the resin of the plant Comiphora wighitii, for controlling or preventing cognitive dysfunction, hyperglycemia and some infective conditions of the skin and a method of preparing Gugulipid by agitating the resin in shake flask assembly or sonicating assembly and preparing a solid or a creamy dosage forms.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: May 24, 2005
    Assignee: Council of Scientific & Industrial Research
    Inventors: Ram Pratap, Raghwendra Pal, Satyawan Singh, Girja Shankar, Chandeshwar Nath, Hemant Kumar Singh, Depak Raina, Arwind Kumar Srivastava, Anil Kumar Rastogi, Puvvada Sri Ramachandra Murthy, Sudhir Srivastava, Onkar Prasad Asthana, Narenda Singh, Nitya Nand
  • Publication number: 20030099729
    Abstract: The present invention provides new uses of Gugulipid, an ethyl acetate extract of the resin of the plant Comiphora wighitii, for controlling or preventing cognitive dysfunction, hyperglycemia and some infective conditions of the skin and a method of preparing Gugulipid by agitating the resin in shake flask assembly or sonicating assembly and preparing a solid or a creamy dosage forms.
    Type: Application
    Filed: December 20, 2002
    Publication date: May 29, 2003
    Inventors: Ram Pratap, Raghwendra Pal, Satyawan Singh, Girja Shankar, Chandeshwar Nath, Hemant Kumar Singh, Depak Raina, Arwind Kumar Srivastava, Anil Kumar Rastogi, Puvvada Sri Ramachandra Murthy, Sudhir Srivastava, Onkar Prasad Asthana, Narendra Singh, Nitya Nand
  • Publication number: 20020119206
    Abstract: The present invention provides new uses of Gugulipid, an ethyl acetate extract of the resin of the plant Comiphora wighitii, for controlling or preventing cognitive dysfunction, hyperglycemia and some infective conditions of the skin and a method of preparing Gugulipid by agitating the resin in shake flask assembly or sonicating assembly and preparing a solid or a creamy dosage forms.
    Type: Application
    Filed: December 22, 2000
    Publication date: August 29, 2002
    Inventors: Ram Pratap, Raghwendra Pal, Satyawan Singh, Girja Shankar, Chandeshwar Nath, Hemant Kumar Singh, Depak Raina, Arwind Kumar Srivastava, Anil Kumar Rastogi, Puvvada Ramachandra Murthy, Sudhir Srivastava, Onkar Prasad Asthana, Narendra Singh, Nitya Nand