Source: https://akcresearchgroup.weebly.com/patents.html
Timestamp: 2019-04-18 12:20:02+00:00

Document:
Asit K. Chakraborti, Alpesh R. Patel, Dinesh Kumar, Sachin Bindal, “An Improved Catalytic Process for Esterification of Carboxylic Acids,” Indian Patent Grant No. 292009; Grant Date: 23-01-2018. Indian patent. Appl. No. 1046/DEL/2009 (May 21, 2009).
Asit K. Chakraborti, Naisargee Parikh, and Sudipta Raha Roy, “A Novel and Improved Process for the Synthesis of 2-Substituted Benzthiazoles/Benzoxazoles using Ionic Liquid as a Catalyst.” Indian Patent Grant No. 290553; Grant Date: 13-12-2017. Indian patent. Appl. No. 1404/DEL/2010 (16/06/2010 IP14531/AMT/md).
Asit K. Chakraborti, Alpesh R. Patel, Dinesh Kumar, “An Improved Process for Esterification using Organic Carbonates,” Indian Patent Grant No. 288722; Grant Date: 25-10-2017. Indian Patent. Appl. No. 554/DEL/2009. Filing Date: 23-03-2009. IP11168/PC/PGV.
Asit K. Chakraborti, Uttam C. Banerjee, Raj Kumar, Sanjeev K. Garg, Vachan S. Meena, “Novel cyclooxygenase-2 inhibitors.” Indian Patent Grant No. 283941; Grant Date: 06-06-2017. Indian Patent. Appl. No. 638/DEL/2008. Filing Date: 14-03-2008. IP08491G/SBitpj.
Asit K. Chakraborti, Sunay V. Chankeshwara, “An Improved Organocatalytic Process for Esterification and Amidation Reaction,” Indian Patent Grant No. 277349; Grant Date: 18-11-2016. Indian patent. Appl. No. 1030/DEL/2008. Filing date: 22-04-2008 IPO 8734/mt/md.
Asit K. Chakraborti and Atul Kondaskar, “An Improved Process for the Preparation of Aminoalcohols.” Indian Patent Grant No. 252277; Grant Date: 04-05-2012. Indian Application No: 337/DEL/2003. Filing Date: 21-03-2003.
Asit K. Chakraborti and Atul Kondaskar, “An Improved Process for Preparation of Hydroxyalkyl and Hydroxyaryl sulfides.” Indian Patent Grant No. 248681; Grant Date: 04-08-2011. Indian Application No: 1209/DEL/2002. Filing Date: 03-12-2002, IPO 0978.
Asit K. Chakraborti and Rajesh Gulhane, “A Process for the Acylation of Various Substrates using a Solid Support Catalyst.” Indian Patent Grant No. 248506; Grant Date: 20-07-2011. Indian Patent Appl. No. 266/DEL/2003. Filing Date: 10-3-2003.
Asit K. Chakraborti and Rajesh Gulhane, “Method for Acylation using Zirconium (IV) Compound as Catalysts.” Indian Patent Grant No. 248501; Grant Date: 20-07-2011. Indian Patent Application No: 336/DEL/2003. Filing Date: 21-03-2003; IPO 1043.
Asit K. Chakraborti, Simi Sarin, Santosh V. Rudrawar, Raj Kumar, Sunay V. Chankeshwara, Abhijit Ray, Sunanda Ghosh Dastidar, “Inhibitors of Phosphodiesterase Type 4,” United States Patent. Pub. No. US 2008/0207659 A1. Pub. Date Aug. 28, 2008.
Asit K. Chakraborti, Simi Sarin, Santosh V. Rudrawar, Raj Kumar, Sunay V. Chankeshwara, Abhijit Ray, Sunanda Ghosh Dastidar “Inhibitors of Phosphodiesterase Type 4,” European Patent. Pub. No. EP 1 958 947 A1. Pub. Date Aug. 20, 2008. Bulletin 2008/34.
Asit K. Chakraborti, Sahaj Pancholia, and Tejas M. Dhameliya, “N-Arylbenzo[d]thiazole-2-carboxamides as Anti-tubercular Agents.” Indian Patent Application No. TEMP/E-1/10432/2017-DEL filed on 2017/03/23 (IP36982/CBR).
Asit K. Chakraborti, and Babita Tanwar,, “Novel 2-Biarylbenzoxazole Compounds and the Process of Preparation Thereof.” Indian Patent Application No. 3433/DEL/2015 filed on 10.23.2015 (IP32736/CBR).
Asit K. Chakraborti, and Babita Tanwar,, “Alkyl 1,2-Diamines and its bioisoters β-Aryloxyamines As Potential Anti-tubercular Agents and Preparation.” Indian Patent Application No. 3430/DEL/2015 filed on 10.23.2015 (IP32735/SB).
Asit K. Chakraborti, and Babita Tanwar, “Novel 2-(2'-Aminophenyl)benzazoles as Potential Anti-tubercular Agents and improved process of preparation thereof.” Indian Patent Application No. 2838/DEL/2015 filed on 09.10.2015 (IP32256/SB/md).
Asit K. Chakraborti, Priyank Purohit, Shyam S. Sharma, Kapileswar Seth, Shivshaean B. Kharatmal, Madhulika Singh, and Gulshan Kumar, “2-(2-Aryl/Alkylphenyl)benzazoles as Selective COX-2 Inhibitory Scaffolds.” Indian Patent Application No. 2540/DEL/2015 filed on 08.18.2015 (IP32255/NC/sa).
Asit K. Chakraborti, and Naisargee Parikh, “An improved oxidant and solvent free one step synthesis of 5-oxochromenopyridine derivatives.” Indian Patent Application No. 1518/DEL/2014 filed on 06.06.2014 (IP24815/AK).
Asit K. Chakraborti, Kapileswar Seth, Sudipta Raha Roy and Damodara N. Kommi, “Improved catalytic process for the synthesis of functionalised dibenzo[1,3]diazepines using metal.” Indian Patent Application No. 338/DEL/2014 filed on 05.02.2014 (IP24720/SP/skm).
Asit K. Chakraborti and Naisargee Parikh, “Ionic Liquid as a catalyst for an Improved Process of Dihydrobenzothiazepine Synthesis.” Indian Patent Application No. 1177/DEL/2013 filed on 22.4.2013 (IP21899/JCR/akm).
Asit K. Chakraborti, Naisargee Parikh and Sudipta Raha Roy, “Process for Synthesis of Functionalized Tetrahydropyridines.” Indian Patent Application No. 226/DEL/2013 filed on 28.1.2013 (IP21900/JCR/akm).
Asit K. Chakraborti, Dinesh Kumar, Santosh Rudraawar, Sachin Bindal, Himanshu and Pradeep Chopra, “Improved Processes for Synthesis of Functionalized Pyridines.” Indian Patent Application No. 3245/DEL/2012 filed on 18.10.2012 (IP16173/SP/sm).
Asit K. Chakraborti, Rajesh Chebolu and Damodara N. Kommi, “An Improved Catalyst-free Process for the Direct Reductive Amination of Aromatic/Alicyclic Aldehydes and Cyclic ketones.” Indian Patent Application No. 1918/DEL/2012 filed on 21.06.2012 (IP20473/RK/am).
Asit K. Chakraborti, Kapileswar Seth, Sudipta Raha Roy and Damodara N. Kommi, “A Green Processes for Synthesis of β-Hydroxy Aryl Ethers in the Presence of Transition Metal Nanoparticles.” Indian Patent Application No. 2071/DEL/2012 provisionally filed on 03.07.2012 (IP18791/SP/sm), complete filing date July 02, 2013.
Asit K. Chakraborti, Damodara N. Kommi and Dinesh Kumar, “Improved Processes for the Synthesis of Lubeluzole.” Indian Patent Application No.1962/DEL/2012 filed on 26.06.2012 (IP20458/RK/rp).
Asit K. Chakraborti, Kapileswar Seth and Sudipta Raha Roy, “An Improved Processes for Synthesis of Phenazines and Azo-compounds based on Reusable Metal Nanoparticles as Catalyst.” Indian Patent Application No. 1818/DEL/2012 filed on 13.06.2012 (IP20392/AK).
Asit K. Chakraborti and Damodara N. Kommi, “Improved Processes for the Total Synthesis of Ranolazine.” Indian Patent Application No.1722/DEL/2012 filed on 05.06.2012 (IP20457/RK/rp).
Asit K. Chakraborti, Dinesh Kumar, Mukesh Sonawane, and Brahmam Pujala “Processes for Synthesis of 2,3-Disubstituted-4-Thiazolidinone.” IndianPatent Application No. 3148/DEL/2011 filed on 08.11.2011 (IP15779/SGBA).
Asit K. Chakraborti, Dinesh Kumar, Tushar Satav, “An Improved Acid Catalyzed One Pot Synthesis of 2-Styryl Quinoline.” Indian Patent Application No. 2673/DEL/2011 filed on 15.09.2011 (IP17892/VR).
Asit K. Chakraborti, Dinesh Kumar and Himanshu Sharma, “An Improved Process for One-Pot Synthesis of 2-Styryl-4-(3H)-Quinazolinones.” IndianPatent Application No. 2443/DEL/2011 filed on 26.08.2011 (IP17889/JCR).
Asit K. Chakraborti and Sudipta Raha Roy “An improved process for synthesis of β-/δ- hydroxysulfides using ionic liquid as an organo catalyst.” Indian Patent Application No. 2366/DEL/2011 filed on 19.08.2011 (IP17890/JCR).
Amit Agarwal, Brahmam Pujala, Asit K. Chakraborti and U.C. Banerjee, “Novel Substituted 6-Amino/carbamato//Uridopurine Compounds as Xanthine Oxidase Inhibitors.” Indian Patent Application No. 1119/DEL/2011 (Provisional 15/04/2011 IP15549/AMT/am; Complete 16/04/2012).
Asit K. Chakraborti, Sunay V. Chankeshwara, “A Novel Process for Direct Alkylation,” Indian patent. Appl. No. 11107/DEL/2008 (May 01, 2008).
Asit K. Chakraborti, Sunay V. Chankeshwara, Bavneet Singh, “An Improved Solid Support Catalyst Systems for Direct Esterification,” Indian patent. Appl. No. 2764/DEL/2007 (Dec 28, 2007).
Manpreet Singh, Parikshit Khokale, Santosh Rudrawar, Asit K. Chakraborti, Uttam C. Banerjee, “Process for the preparation of (R)-1-chloro-3-(3,4-difluorophenoxy)-2-propanol.” Indian Pat. Appl. (2008), 21pp. CODEN: INXXBQ IN 2006DE02570 A 20080606. Application: IN 2006-DE2570 20061201. Priority: CAN 150:329407 AN 2008:716774 CAPLUS (Copyright (C) 2009 ACS on SciFinder (R)).
Asit K. Chakraborti, Simi Sarin, Santosh V. Rudrawar, Raj Kumar, Sunay V. Chankeshwara, Sunanda Dastidar, Abhijit Ray, “Inhibitors of Phosphodiesterase Type-IV,” PCT patent filed/1882/DEL/2006 (22-08-2006).
Asit K. Chakraborti, Simi Sarin, Santosh V. Rudrawar, Raj Kumar, Sunay V. Chankeshwara, Sunanda Dastidar, Abhijit Ray, “Phosphodiesterase Inhibitors,” PCT patent filed/566/DEL/2006 (06-03-2006).
Asit K. Chakraborti, Santosh V. Rudrawar, Raj Kumar, Sunay V. Chankeshwara, Simi Sarin, Dr. Sunanda Dastidar, Dr. Abhijit Ray, ‘Inhibitors of Phosphodiesterase Type-IV,” PCT patent filed/565/DEL/2006 (03-03-2006).
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 Application No. 3433
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 Application No. 2838
 Application No. 2540
 Application No. 1518
 Application No. 338
 Application No. 1177
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 Application No. 3245
 Application No. 1918
 Application No. 2071
 Application No.1962
 Application No. 1818
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