Patents by Inventor Govindan Nair

Govindan Nair 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: 20190144402
    Abstract: The present invention relates to methods of modulating an immune response mediated by a PD-1 signaling pathway and of treating a cancer or an infectious disease. A subject is administered a compound(s) or a pharmaceutically acceptable salt or pharmaceutically acceptable composition thereof of formula (I) In the ring Q is S or O. R1 substituents are an optionally substituted side chain of the amino acid Ser or Thr and R3 substituents are a side chain of the amino acids Asn, Asp, Gln, or Glu. R2 is hydrogen or —CO-Aaa and Aaa is Thr or Ser with a free, amidated or esterified C-terminus. R4 and R5 are independently hydrogen or absent. R6 is hydrogen, alkyl or acyl.
    Type: Application
    Filed: November 15, 2018
    Publication date: May 16, 2019
    Applicant: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Publication number: 20190097926
    Abstract: Examples disclosed herein relate to a grace link state advertisement (LSA) from a virtual stack device. In an example, a first member network device of a virtual stack device may an input from a Multi-Active Detection (MAD) device. The virtual stack device may be a logical network device comprising the first member network device and a second member network device. Based on the input from the MAD device, the first member network device may determine whether a grace link state advertisement (LSA) is to be sent to a neighbor Open Shortest Path First (OSPF) enabled router by the first member network device, wherein the neighbor OSPF enabled router is an OSPF neighbor to the virtual stack device.
    Type: Application
    Filed: September 27, 2017
    Publication date: March 28, 2019
    Inventors: Anil Raj, Anoop Govindan Nair, Venkatavaradhan Devarajan
  • Patent number: 10173989
    Abstract: The present invention relates to synthetic methods for 1,2,4-oxadiazole compounds. The general synthetic scheme is: R1 represents ?CH2OtBu or ?CH(CH3)OtBu, R3 represents ?CH2C(O)NHCPh3, ?CH2CH2C(O)NHCPh3, ?CH2C(O)OtBu, or ?CH2CH2C(O)OtBu, and Aaa is an amino acid residue selected from Thr and Ser; wherein the C-terminus thereof is esterified, and wherein the hydroxy moiety of the side chain of Thr or Ser is substituted with tbutyl; the base is triethylamine; and the solvent is tetrahydrofuran.
    Type: Grant
    Filed: September 24, 2017
    Date of Patent: January 8, 2019
    Assignee: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Patent number: 10160736
    Abstract: The present invention relates to synthetic methods for 1,3,4-oxadiazole and 1,3,4-thiadiazole compounds. The general synthetic scheme is: R1 substituents are —CH2OH, —CH(CH3)OH, —CH2Ph, —CH3, or —CH2C(O)NH2 optionally substituted with alkyl or aralkyl. R3 substituents are —CH2OH, —CH3, —CH2CH2C(O)OH, —CH2CH2C(O)NH2, —CH2C(O)NH2, or —CH2C(O)OH, wherein the carboxylic acids and amides are optionally substituted with alkyl or aralkyl.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: December 25, 2018
    Assignee: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Patent number: 10106581
    Abstract: Methods of making a compound according to the following scheme: wherein: R1 is a side chain of an amino acid residue selected from Ala, Ser, Thr and Leu; R2 is a side chain of an amino acid residue selected from Asp, Glu, Gln and Asn; [Aaa] is an amino acid residue selected from Ser, Asp, Ala, Ile, Phe, Trp, Lys, Glu and Thr; R3 is hydrogen or alkyl; Each of R4 and R4? independently is hydrogen or alkyl; Both Ra and Ra? are hydrogen; or together are an oxo(?O) group; Both Rb and Rb? are hydrogen; or together are an oxo (?O) group; L is X is CH2, O or S; R5 is hydrogen or alkyl; m is an integer from 1 to 3; and n is an integer from 2 to 20.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: October 23, 2018
    Assignee: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Publication number: 20180097718
    Abstract: Examples disclosed herein relate to reducing flooding of route updates of a dynamic routing protocol. In an example, number of route updates received by a router from each neighbor router may be determined, wherein the router may be present in a network using a dynamic routing protocol. Each neighbor router may be classified into one of a plurality of groups of neighbor routers in such a manner that number of route updates originating from each group of neighbor routers is approximately same. A first route update interval may be determined for each group of neighbor routers for sending a respective first set of future route updates therefrom to the router. The respective first route update interval for sending the respective first set of future route updates may be notified to the respective member routers of each group of neighbor routers.
    Type: Application
    Filed: June 24, 2015
    Publication date: April 5, 2018
    Inventors: Anoop Govindan Nair, Anil Raj
  • Publication number: 20180086726
    Abstract: The present invention relates to synthetic methods for 1,3,4-oxadiazole and 1,3,4-thiadiazole compounds. The general synthetic scheme is: R1 substituents are —CH2OH, —CH(CH3)OH, —CH2Ph, —CH3, or —CH2C(O)NH2 optionally substituted with alkyl or aralkyl. R3 substituents are —CH2OH, —CH3, —CH2CH2C(O)OH, —CH2CH2C(O)NH2, —CH2C(O)NH2, or —CH2C(O)OH, wherein the carboxylic acids and amides are optionally substituted with alkyl or aralkyl.
    Type: Application
    Filed: October 2, 2017
    Publication date: March 29, 2018
    Applicant: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Publication number: 20180072689
    Abstract: The present invention relates to synthetic methods for 1,2,4-oxadiazole compounds. The general synthetic scheme is: R1 substituents generally are optionally substituted methanol or ethanol moieties, R3 substituents generally are optionally substituted acetic or propanoic acids or their amides and Aaa is Thr or Ser which has a free, amidated or esterified C-terminus.
    Type: Application
    Filed: September 24, 2017
    Publication date: March 15, 2018
    Applicant: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Publication number: 20180044329
    Abstract: The present invention relates to 3-substituted-1,2,4-oxadiazole and thiadiazole compounds of formula (I) or formula (II) and their use to inhibit the programmed cell death 1 (PD-1) signaling pathway and/or for treatment of disorders by inhibiting an immunosuppressive signal induced by PD-1, PD-L1 or PD-L2.
    Type: Application
    Filed: March 9, 2016
    Publication date: February 15, 2018
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Appukkuttan Prasad, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Publication number: 20180044304
    Abstract: The present invention relates to 1,3,4-oxadiazole and thiadiazole compounds of formula (I) and their use to inhibit the programmed cell death 1 (PD-1) signaling pathway and/or for treatment of disorders by inhibiting an immunosuppressive signal induced by PD-1, PD-L1 or PD-L2.
    Type: Application
    Filed: March 8, 2016
    Publication date: February 15, 2018
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Publication number: 20180044305
    Abstract: The present invention relates to 3-substituted 1,3,4-oxadiazole and thiadiazole compounds of formula (I) and their use to inhibit the programmed cell death 1 (PD-1) signaling pathway and/or for treatment of disorders by inhibiting an immunosuppressive signal induced by PD-1, PD-L1 or PD-L2.
    Type: Application
    Filed: March 10, 2016
    Publication date: February 15, 2018
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Appukkutan Prasad, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Publication number: 20180044350
    Abstract: The present invention relates to cyclic compounds of formula (I) and their use to inhibit the programmed cell death 1 (PD-1) signaling pathway and/or for treatment of disorders by inhibiting an immunosuppressive signal induced by PD-1, PD-L1 or PD-L2.
    Type: Application
    Filed: March 7, 2016
    Publication date: February 15, 2018
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Patent number: 9783578
    Abstract: The present invention provides immunosuppression compounds to inhibit the programmed cell death 1 (PD1) signalling pathway. The present invention further provides peptide based compositions for treatment of cancer or treatment of infections via immunopotentiation caused by inhibition of immunosuppressive signaling induced by PD-1, PD-L1, or PD-L2 and therapies using them, immunopotentiative substrates included as the active ingredient. Further, the invention provides an application of the compositions containing the peptide moieties for preventive and/or therapeutic agents for cancer, cancer metastasis, immunodeficiency, an infectious disease or the like and an application of peptide moieties as a testing or diagnostic agent or a research agent for such a disease.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: October 10, 2017
    Assignee: AURIGENE DISCOVERY TECHNOLOGIES LIMITED
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Suresh Kumar Vadlamani, Koteswara Rao Vemula, Leena Khare Satyam, Krishnaprasad Subbarao, K. Rajeev Shrimali, Sreenivas Kandepu
  • Patent number: 9776978
    Abstract: The present invention relates to 1,3,4-oxadiazole and 1,3,4-thiadiazole compounds as therapeutic agents capable of inhibiting the programmed cell death 1 (PD1) signalling pathway. The invention also refers to derivatives of the therapeutic agents. The invention also encompasses the use of the said therapeutic agents and derivatives for treatment of disorders via immunopotentiation comprising inhibition of immunosuppressive signal induced due to PD-1, PD-L1, or PD-L2 and therapies using them.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: October 3, 2017
    Assignee: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Patent number: 9771338
    Abstract: The present invention relates to 1,2,4-oxadiazole and 1,2,4-thiadiazole compounds as therapeutic agents capable of inhibiting the programmed cell death 1 (PD1) signaling pathway. The invention also refers to derivatives of the therapeutic agents. The invention also encompasses the use of the said therapeutic agents and derivatives for treatment of disorders via immunopotentiation comprising inhibition of immunosuppressive signal induced due to PD-1, PD-L1, or PD-L2 and therapies using them.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: September 26, 2017
    Assignee: Auirgene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Publication number: 20170101387
    Abstract: The present invention relates to 1,3,4-oxadiazole and 1,3,4-thiadiazole compounds as therapeutic agents capable of inhibiting the programmed cell death 1 (PD1) signalling pathway. The invention also refers to derivatives of the therapeutic agents. The invention also encompasses the use of the said therapeutic agents and derivatives for treatment of disorders via immunopotentiation comprising inhibition of immunosuppressive signal induced due to PD-1, PD-L1, or PD-L2 and therapies using them.
    Type: Application
    Filed: October 18, 2016
    Publication date: April 13, 2017
    Applicant: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Publication number: 20170101444
    Abstract: The present invention relates to cyclic peptidomimetic compounds as therapeutic agents capable of inhibiting the programmed cell death 1 (PD1) signalling pathway. The invention also relates to derivatives of the therapeutic agents. The invention also encompasses the use of the said therapeutic agents and derivatives for treatment of disorders via immunopotentiation comprising inhibition of immunosuppressive signal induced due to PD-1, PD-L1, or PD-L2 and therapies using them.
    Type: Application
    Filed: October 24, 2016
    Publication date: April 13, 2017
    Applicant: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Publication number: 20170101386
    Abstract: The present invention relates to 1,2,4-oxadiazole and 1,2,4-thiadiazole compounds as therapeutic agents capable of inhibiting the programmed cell death 1 (PD1) signaling pathway. The invention also refers to derivatives of the therapeutic agents. The invention also encompasses the use of the said therapeutic agents and derivatives for treatment of disorders via immunopotentiation comprising inhibition of immunosuppressive signal induced due to PD-1, PD-L1, or PD-L2 and therapies using them.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 13, 2017
    Applicant: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli
  • Patent number: 9422339
    Abstract: The present invention relates to novel cyclic compounds as therapeutic agents capable of inhibiting the programmed cell death 1 (PD1) signalling pathway. The invention also relates to derivatives of the therapeutic agents. The invention also encompasses the use of the said therapeutic agents and derivatives for treatment of disorders via immunopotentiation comprising inhibition of immunosuppressive signal induced due to PD-1, PD-L1, or PD-L2 and therapies using them.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: August 23, 2016
    Assignee: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra
  • Publication number: 20160194295
    Abstract: The present invention relates to 1,3,4-oxadiazole and 1,3,4-thiadiazole compounds as therapeutic agents capable of inhibiting the programmed cell death 1 (PD1) signalling pathway. The invention also refers to derivatives of the therapeutic agents. The invention also encompasses the use of the said therapeutic agents and derivatives for treatment of disorders via immunopotentiation comprising inhibition of immunosuppressive signal induced due to PD-1, PD-L1, or PD-L2 and therapies using them.
    Type: Application
    Filed: September 5, 2014
    Publication date: July 7, 2016
    Applicant: Aurigene Discovery Technologies Limited
    Inventors: Pottayil Govindan Nair Sasikumar, Muralidhara Ramachandra, Seetharamaiah Setty Sudarshan Naremaddepalli