Patents by Inventor Mayank Ghanshyambhai Dave

Mayank Ghanshyambhai Dave 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: 9108972
    Abstract: The present invention discloses new salts of (2R)-4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine i.e. gentisate, adipate and trifluoro acetic acid salts. The invention also describes the new. crystalline and amorphous forms of (2R)-4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine gentisate. The present invention also discloses novel crystalline salt form of (2R)-4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine hydrochloride and novel crystalline and amorphous salt forms of besylate and process for their preparation and isolation.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: August 18, 2015
    Assignee: Cadila Healthcare Limited
    Inventors: Bipin Pandey, Mayank Ghanshyambhai Dave, Himanshu M. Kothari, Bhavin Shriprasad Shukla
  • Patent number: 8907090
    Abstract: The invention provides improved processes for the preparation of hydrated form of (S)-(+)-Clopidogrel bisulfate as well as improved processes for the preparation of form-I and form-II of (S)-(+)-Clopidogrel bisulfate.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: December 9, 2014
    Assignee: Cadila Healthcare Limited
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Bipin Pandey, Mayank Ghanshyambhai Dave, Parind Dholakia
  • Patent number: 8754207
    Abstract: The invention relates to processes for the preparation of compound of CCI-779 having the Formula (I), which is useful as an antineoplastic agent. The invention further relates to certain novel intermediates useful in the preparation of compound of CCI-779 and processes for their preparation. The invention also relates to pharmaceutical compositions that include the compound of CCI-779, prepared according to the processes disclosed herein.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: June 17, 2014
    Assignee: Cadila Healthcare Limited
    Inventors: Mayank Ghanshyambhai Dave, Bipin Pandey
  • Publication number: 20140051856
    Abstract: The present invention discloses new salts of (2R)-4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine i.e. gentisate, adipate and trifluoro acetic acid salts. The invention also describes the new. crystalline and amorphous forms of (2R)-4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine gentisate. The present invention also discloses novel crystalline salt form of (2R)-4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine hydrochloride and novel crystalline and amorphous salt forms of besylate and process for their preparation and isolation.
    Type: Application
    Filed: March 2, 2012
    Publication date: February 20, 2014
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Bipin Pandey, Mayank Ghanshyambhai Dave, Himanshu M. Kothari, Bhavin Shriprasad Shukla
  • Patent number: 8476437
    Abstract: The present invention relates to synthesis of ?-amino acid derivatives of formula (I) and its salts of formula (Ia) by a novel process. The process comprises the reduction of a protected or unprotected prochiral ?-amino acrylic acid or derivative there of, by using borane containing reducing agents at atmospheric pressure. The resulting racemic ?-amino compound is resolved to a pure stereoisomer of formula (I), specifically to (2R)-4-oxo-4-[3-Ctrifluoromethyl)-5,6-dihydrol[1,2,4]triazolo[4,3-alpyrazin-7(8H)-yl]-1-(2,4,4-trifluorophenyl)butan-2-amine. In an embodiment the invention disclosed polymorphic forms of formula (I), phosphate salt of formula (I) and also a Dibenzoyl-L-tartaric acid salt of formula (I).
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: July 2, 2013
    Assignee: Cadila Healthcare Limited
    Inventors: Himanshu Madhusudan Kothari, Mayank Ghanshyambhai Dave, Bipin Pandey, Bhavin Shriprasad Shukla
  • Publication number: 20120202988
    Abstract: The invention relates to processes for the preparation of compound of CCI-779 having the Formula (I), which is useful as an antineoplastic agent. The invention further relates to certain novel intermediates useful in the preparation of compound of CCI-779 and processes for their preparation. The invention also relates to pharmaceutical compositions that include the compound of CCI-779, prepared according to the processes disclosed herein.
    Type: Application
    Filed: September 24, 2010
    Publication date: August 9, 2012
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Mayank Ghanshyambhai Dave, Bipin Pandey
  • Patent number: 8053579
    Abstract: Disclosed are new salts of Clopidogrel viz. Clopidogrel mesylate, Clopidogrel besylate and Clopidogrel tosylate, methods for their preparation and pharmaceutical compositions containing them and their use in medicine.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: November 8, 2011
    Assignee: Cadila Healthcare Limited
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Mayank Ghanshyambhai Dave
  • Publication number: 20110213149
    Abstract: The present invention relates to synthesis of ?-amino acid derivatives of formula (I) and its salts of formula (Ia) by a novel process. The process comprises the reduction of a protected or unprotected prochiral ?-amino acrylic acid or derivative there of, by using borane containing reducing agents at atmospheric pressure. The resulting racemic ?-amino compound is resolved to a pure stereoisomer of formula (I), specifically to (2R)-4-oxo-4-[3-Ctrifluoromethyl)-5,6-dihydrol[1,2,4]triazolo[4,3-alpyrazin-7(8H)-yl]-1-(2,4,4-trifluorophenyl)butan-2-amine. In an embodiment the invention disclosed polymorphic forms of formula (I), phosphate salt of formula (I) and also a Dibenzoyl-L-tartaric acid salt of formula (I).
    Type: Application
    Filed: August 26, 2009
    Publication date: September 1, 2011
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Himanshu Madhusudan Kothari, Mayank Ghanshyambhai Dave, Bipin Pandey, Bhavin Shriprasad Shukla
  • Patent number: 7994322
    Abstract: Disclosed herein are the improved processes for the preparation of different forms of (S)-(+)-Clopidogrel besylate, pharmaceutical compositions containing them and their use in medicine.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: August 9, 2011
    Assignee: Cadila Healthcare Limited
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Bipin Pandey, Mayank Ghanshyambhai Dave, Parind Narendra Dholakia
  • Patent number: 7960550
    Abstract: Processes for the preparation of Methyl (+)-(S)-(2-chlorophenyl)-(6,7dihydro-4H-thieno[3,2-c]pyridin-5-yl)acetate [Clopidogrel base, (I)] and their various pharmaceutically acceptable salts.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: June 14, 2011
    Assignee: Cadila Healthcare Limited
    Inventors: Parind Narendra Dholakia, Mayank Ghanshyambhai Dave, Pankaj Ramanbhai Patel
  • Publication number: 20100298371
    Abstract: The present invention provides improved processes for preparing chemically and chirally pure Solifenacin base. The present invention also provides for a composition comprising of a salt of Solifenacin having at least 98% purity. The present invention also disclose certain new salts of Solifenacin as well as well as new polymorphic forms of Solifenacin hydrochloride and Solifenacin oxalate, in pure form.
    Type: Application
    Filed: December 2, 2008
    Publication date: November 25, 2010
    Inventors: Mayank Ghanshyambhai Dave, Bipin Pandey, Himanshu M. Kothari, Pankaj Ramanbhai Patel
  • Publication number: 20100204268
    Abstract: The invention provides improved processes for the preparation of hydrated form of (S)-(+)-Clopidogrel bisulfate as well as improved processes for the preparation of form-I and form-II of (S)-(+)-Clopidogrel bisulfate.
    Type: Application
    Filed: April 21, 2010
    Publication date: August 12, 2010
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Braj Bhushan LOHRAY, Vidya Bhushan LOHRAY, Bipin PANDEY, Mayank Ghanshyambhai DAVE, Parind DHOLAKIA
  • Publication number: 20100197923
    Abstract: Disclosed are new salts of Clopidogrel viz. Clopidogrel mesylate, Clopidogrel besylate and Clopidogrel tosylate, methods for their preparation and pharmaceutical compositions containing them and their use in medicine.
    Type: Application
    Filed: April 14, 2010
    Publication date: August 5, 2010
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Braj Bhushan LOHRAY, Vidya Bhushan Lohray, Mayank Ghanshyambhai Dave
  • Patent number: 7732608
    Abstract: Disclosed are salts of Clopidogrel viz. Clopidegrel mesylate, Clopidegrel besylate and Clopidogrel tosylate, methods for their preparation and pharmaceutical compositions containing them and their use in medicine.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: June 8, 2010
    Assignee: Cadila Healthcare Limited
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Mayank Ghanshyambhai Dave
  • Publication number: 20100081824
    Abstract: Improved processes for the preparation of different forms of (S)-(+)-Clopidogrel besylate, pharmaceutical compositions containing them and their use in medicine.
    Type: Application
    Filed: December 1, 2009
    Publication date: April 1, 2010
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Bipin Pandey, Mayank Ghanshyambhai Dave, Parind Narendra Dholakia
  • Publication number: 20100016595
    Abstract: Processes for the preparation of Methyl (+)-(S)-(2-chlorophenyl)-(6,7dihydro-4H-thieno[3,2-c]pyridin-5-yl)acetate [Clopidogrel base, (I)] and their various pharmaceutically acceptable salts.
    Type: Application
    Filed: January 8, 2007
    Publication date: January 21, 2010
    Inventors: Parind Narendra Dholakia, Mayank Ghanshyambhai Dave, Pankaj Ramanbhai Patel
  • Publication number: 20090221827
    Abstract: Disclosed herein are the improved processes for the preparation of different forms of (S)-(+)-Clopidogrel besylate, pharmaceutical compositions containing them and their use in medicine.
    Type: Application
    Filed: August 28, 2006
    Publication date: September 3, 2009
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Bipin Pandey, Mayank Ghanshyambhai Dave, Parind Narendra Dholakia
  • Publication number: 20080234323
    Abstract: The present invention describes novel forms of Rimonabant hydrochloride, processes for their preparation and pharmaceutical compositions containing them. Thus, the present invention discloses three new crystalline forms designated as Form II, Form III and Form IV of Rimonabant hydrochloride and novel amorphous forms of the salt.
    Type: Application
    Filed: January 6, 2006
    Publication date: September 25, 2008
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Bipin Pandey, Mayank Ghanshyambhai Dave, Parind Narendra Dholakia