Inventor · disambiguated record
Purna Chandra Ray
Also filed as: RAY PURNA C · RAY PURNA CHANDRA
12 granted patents·11 pending applications·28 citations·filing 1994–2017
86Inventor score
Top patents by PatentIndex Score
23 records- 0177US8048904B2Process for the preparation of olmesartan medoxomilMATRIX LAB LTD·Filed 2007·Granted Nov 1, 2011·7 cites·19 claims
- 0274US6686497B1Synthesis of 3-ethoxy-4-ethoxycarbonyl phenyl acetic acid, a key acid synthon of repaglinideRANBAXY LAB LTD·Filed 2000·Granted Feb 3, 2004·8 cites·18 claims
- 0370US8877947B2Process for preparation of substantially pure fosamprenavir calcium and its intermediatesARORA SURINDER KUMAR·Filed 2011·Granted Nov 4, 2014·2 cites·7 claims
- 0466US7148355B2Process for the preparation of repaglinideRANBAXY LAB LTD·Filed 2002·Granted Dec 12, 2006·4 cites·10 claims
- 0566US7078524B2Process for the synthesis of ganciclovirRANBAXY LAB LTD·Filed 2002·Granted Jul 18, 2006·4 cites·12 claims
- 0663US9127029B2Process for preparation of substantially pure fosamprenavir calcium and its intermediatesLUPIN LTD·Filed 2014·Granted Sep 8, 2015·0 cites·4 claims
- 0752US8026356B2Process for the large scale production of StavudineMATRIX LAB LTD·Filed 2006·Granted Sep 27, 2011·0 cites·14 claims
- 0850US8247568B2Process for the preparation of pure rabeprazoleTYAGI OM DUTT·Filed 2008·Granted Aug 21, 2012·0 cites·21 claims
- 0948US5696275AProcess for the manufacture of pharmaceutical grade ranitidine baseRANBAXY LAB LTD·Filed 1994·Granted Dec 9, 1997·3 cites·28 claims
- 1045US9163009B2Salts of raltegravirRAY PURNA CHANDRA·Filed 2012·Granted Oct 20, 2015·0 cites·7 claims
- 1144US2009062550A1Process for the Large Scale Production of Rizatriptan BenzoateMATRIX LAB LTD·Filed 2006·Application pending·0 cites
- 1241US2016185766A1Novel Salts of RaltegravirLUPIN LTD·Filed 2015·Application pending·0 cites
- 1340US2006142574A1Process for the preparation of ganciclovirBABU JAYACHANDRA S·Filed 2003·Application pending·0 cites
- 1440US2013041166A1Process for the preparation of dienogest substantially free of impuritiesLUPIN LTD·Filed 2011·Application pending·0 cites
- 1540US2015274770A1Novel process and intermediate for preparation of ulipristalLUPIN LTD·Filed 2013·Application pending·0 cites
- 1638US10752618B2Process for the preparation of pure and stable crystalline Raltegravir potassium form 3LUPIN LTD·Filed 2017·Granted Aug 25, 2020·0 cites·7 claims
- 1738US10479787B2Process for preparation of tetrabenazine and deutetrabenazineLUPIN LTD·Filed 2017·Granted Nov 19, 2019·0 cites·19 claims
- 1837US2013005780A1Controlled release pharmaceutical compositions of tapentadolLUPIN LTD·Filed 2011·Application pending·0 cites
- 1936US2005027143A1Process for the preparation of beta-ionylideneacetaldehydeFiled 2002·Application pending·0 cites
- 2034US2015328215A1Stable amorphous raltegravir potassium premix and process for the preparation thereofLUPIN LTD·Filed 2013·Application pending·0 cites
- 2133US2017259241A1A manufacturing process for an iron containing adsorbentLUPIN LTD·Filed 2015·Application pending·0 cites
- 2233US2019256498A1Crystalline forms of daclatasvir dihydrochlorideLUPIN LTD·Filed 2017·Application pending·0 cites
- 2331US2013096319A1Process for preparation of amisulpridePAGHDAR DINESH JAYNTIBHAI·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →