Inventor · disambiguated record
Kai Rossen
Also filed as: ROSSEN KAI
44 granted patents·6 pending applications·410 citations·filing 1990–2016
98Inventor score
Top patents by PatentIndex Score
50 records- 0190US8658808B2Process for the production of dronedarone intermediatesKRETZSCHMAR GERHARD·Filed 2010·Granted Feb 25, 2014·13 cites·12 claims
- 0289US6369275B1Process for making diaryl pyridines useful as cox-2 inhibitorsMERCK & CO INC·Filed 2000·Granted Apr 9, 2002·18 cites·6 claims
- 0389US6040450AProcess for making diaryl pyridines useful as cox-2-inhibitorsMERCK & CO INC·Filed 1998·Granted Mar 21, 2000·43 cites·19 claims
- 0488US6555677B2Phase transfer catalyzed glycosidation of an indolocarbazoleMERCK & CO INC·Filed 2001·Granted Apr 29, 2003·54 cites·13 claims
- 0587US6204387B1Process for making diaryl pyridines useful as COX-2 inhibitorsMERCK & CO INC·Filed 1998·Granted Mar 20, 2001·33 cites·7 claims
- 0685US8674121B2Process for the production of benzofuransKRETZSCHMAR GERHARD·Filed 2010·Granted Mar 18, 2014·13 cites·21 claims
- 0782US6127545AProcess for making 2-aryl-3-aryl-5-halo pyridines useful as COX-2 inhibitorsMERCK & CO INC·Filed 1998·Granted Oct 3, 2000·30 cites·19 claims
- 0880US6252116B1Intermediates useful in a process for synthesizing COX-2 inhibitorsMERCK & CO INC·Filed 2000·Granted Jun 26, 2001·13 cites·6 claims
- 0980US5883267AProcess for making phenyl heterocycles useful as cox-2 inhibitorsMERCK & CO INC·Filed 1997·Granted Mar 16, 1999·23 cites·10 claims
- 1079US5217972AQuinolonecarboxylic acid derivatives and their use as antiviral agentsBAYER AG·Filed 1990·Granted Jun 8, 1993·19 cites·5 claims
- 1178US10336698B2Process for the production of 2-[4-(cyclopropanecarbonyl)phenyl]-2-methyl-propanenitrileSANOFI AVENTIS DEUTSCHLAND·Filed 2016·Granted Jul 2, 2019·2 cites·24 claims
- 1277US6040319AProcess for synthesizing COX-2 inhibitorsMERCK & CO INC·Filed 1999·Granted Mar 21, 2000·36 cites·21 claims
- 1375US6153787AIntermediates for making heterocycles useful as COX-2 inhibitorsMERCK & CO INC·Filed 1998·Granted Nov 28, 2000·13 cites·2 claims
- 1472US6130334AProcess for making 2-aryl-3-aryl-5-halo pyridines useful as COX-2 inhibitorsMERCK & CO INC·Filed 1998·Granted Oct 10, 2000·25 cites·2 claims
- 1569US5874629AChiral bisphosphinesMERCK & CO INC·Filed 1997·Granted Feb 23, 1999·11 cites·6 claims
- 1668US5612484AProcess for making HIV protease inhibitorsMERCK & CO INC·Filed 1995·Granted Mar 18, 1997·12 cites·1 claims
- 1767US6538134B24-Benzyl-2-hydroxy-1,4-oxazine-3-one and polymorphic forms thereofMERCK & CO INC·Filed 2001·Granted Mar 25, 2003·3 cites·14 claims
- 1866US7531697B2Process for the preparation of aromatic aldehydesDEGUSSA·Filed 2006·Granted May 12, 2009·1 cites·12 claims
- 1965US8716481B2Process for the preparation of 6-substituted-1-(2H)-isoquinolinonesROSSEN KAI·Filed 2010·Granted May 6, 2014·1 cites·11 claims
- 2062US6512127B2Process for the preparation of hydroxylactonesDEGUSSA·Filed 2001·Granted Jan 28, 2003·2 cites·14 claims
- 2158US5723615AProcess for preparing 4-tert-butyloxycarbonyl-(S)-piperazine-2-tert-butylcarboxamideMERCK & CO INC·Filed 1996·Granted Mar 3, 1998·7 cites·11 claims
- 2257US5728840AProcess for making an epoxideMERCK & CO INC·Filed 1995·Granted Mar 17, 1998·7 cites·13 claims
- 2354US5637711AProcess for making HIV protease inhibitorsMERCK & CO INC·Filed 1995·Granted Jun 10, 1997·3 cites·1 claims
- 2453US6043387AChiral bisphosphinesMERCK & CO INC·Filed 1999·Granted Mar 28, 2000·4 cites·11 claims
- 2552US5663341AProcess for making HIV protease inhibitorsMERCK & CO INC·Filed 1995·Granted Sep 2, 1997·4 cites·17 claims
- 2651US9156815B2Salt of (R)-3-(6-amino-pyridin-3-yl)-2-(1-Cyclohexyl-1H-imidazol-4-yl) ethyl propionateSANOFI SA·Filed 2012·Granted Oct 13, 2015·0 cites·10 claims
- 2749US7045640B2Method of producing 5-formyl-2-furylboronic acidDEGUSSA·Filed 2003·Granted May 16, 2006·1 cites·19 claims
- 2849US5981759AProcess for indinavir intermediateMERCK & CO INC·Filed 1998·Granted Nov 9, 1999·5 cites·19 claims
- 2949US5300643AQuinolonecarboxylic acid derivativesBAYER AG·Filed 1992·Granted Apr 5, 1994·3 cites·4 claims
- 3048US7824899B2Preparation of enantiomerically enriched amines and amides by enzymatic resolution using a sulfonylacetic acid ester as acyl donorEVONIK DEGUSSA GMBH·Filed 2007·Granted Nov 2, 2010·0 cites·15 claims
- 3146US7427691B2Resolution of p-hydroxyphenyl-2-alkoxypropionic acidsDEGUSSA·Filed 2005·Granted Sep 23, 2008·0 cites·18 claims
- 3245US5618939AProcess for making HIV protease inhibitorsMERCK & CO INC·Filed 1995·Granted Apr 8, 1997·4 cites·11 claims
- 3345US2008306273A1Process for the Preparation of 1-Aminopiperidine DerivativesMOST DIETER·Filed 2006·Application pending·0 cites
- 3444US10696633B2Process for the preparation of fexofenadine and of intermediates used thereinSANOFI AVENTIS DEUTSCHLAND·Filed 2016·Granted Jun 30, 2020·0 cites·18 claims
- 3543US8618310B2Process for preparing n-protected 4-ketoproline derivativesROSSEN KAI·Filed 2005·Granted Dec 31, 2013·0 cites·20 claims
- 3643US6395894B2Process for the synthesis of carbapenem intermidiates, and compounds producedFiled 1999·Granted May 28, 2002·2 cites·29 claims
- 3742US2004024196A1Phase transfer catalyzed glycosidation of an indolocarbazoleFiled 2001·Application pending·0 cites
- 3841US6156895AProcess for preparing 4-tert-butyloxycarbonyl-(S)-piperazine-2-tert-butylcarboxamideMERCK & CO INC·Filed 1999·Granted Dec 5, 2000·1 cites·5 claims
- 3940US8334392B2Process for the production of artemisinin intermediatesKRAFT VOLKER·Filed 2010·Granted Dec 18, 2012·0 cites·7 claims
- 4040US6403793B2Intramolecular glycosidation process for the synthesis of (2R, 2-alpha-R, 3a)-2-[1-(3,5- bis (trifluoromethyl) phenyl)ethoxy]-3-(4-fluorophenyl)-1,4-oxazineMERCK & CO INC·Filed 2001·Granted Jun 11, 2002·0 cites·8 claims
- 4139US5700364AElectrochemical oxidationMERCK & CO INC·Filed 1996·Granted Dec 23, 1997·4 cites·14 claims
- 4239US2002081671A1Reductive amination of alpha-ketodicarboxylic acid derivativesDEGUSSA·Filed 2001·Application pending·0 cites
- 4338US2005272930A1Process for the prepation of 3-hydroxy-(2-thienyl)propanaminesHEMS WILLIAM·Filed 2003·Application pending·0 cites
- 4435US5977364AProcess for preparing 4-tert-butyloxycarbonyl-(S)-piperazine-2-tert-butylcarboxamideMERCK & CO INC·Filed 1999·Granted Nov 2, 1999·0 cites·12 claims
- 4535US5861512AProcess for making HIV protese inhibitorsMERCK & CO INC·Filed 1997·Granted Jan 19, 1999·0 cites·5 claims
- 4635US2002062026A1Method for preparing N-methyleneglycinatesDEGUSSA·Filed 2001·Application pending·0 cites
- 4733US10112973B2Process for the preparation of ramiprilSANOFI AVENTIS DEUTSCHLAND·Filed 2015·Granted Oct 30, 2018·0 cites·17 claims
- 4832US5693803AProcess for making HIV protease inhibitorsMERCK & CO INC·Filed 1995·Granted Dec 2, 1997·0 cites·2 claims
- 4932US2012264925A1Method for producing pyrazole glycoside derivativesPODESCHWA MICHAEL·Filed 2010·Application pending·0 cites
- 5029US8865906B2Process for the preparation of a compound useful as an inhibitor of TAFIaROSSEN KAI·Filed 2010·Granted Oct 21, 2014·0 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →