Inventor · disambiguated record
Reinhard Langer
Also filed as: LANGER REINHARD
42 granted patents·5 pending applications·782 citations·filing 1991–2022
98Inventor score
Top patents by PatentIndex Score
47 records- 0198US5877350AProcess for the production of aromatic aminesBAYER AG·Filed 1995·Granted Mar 2, 1999·208 cites·31 claims
- 0297US5231212AProcess for the continuous preparation of dialkyl carbonatesBAYER AG·Filed 1992·Granted Jul 27, 1993·93 cites·13 claims
- 0396US5344954AProcess for the preparation of diaryl carbonatesBAYER AG·Filed 1993·Granted Sep 6, 1994·76 cites·20 claims
- 0495US5334742AProcess for the continuous preparation of diaryl carbonates from dialkyl carbonatesBAYER AG·Filed 1993·Granted Aug 2, 1994·61 cites·20 claims
- 0592US5359118AProcess for the continuous preparation of dialkyl carbonatesBAYER AG·Filed 1993·Granted Oct 25, 1994·104 cites·17 claims
- 0683US5808157AProcess for producing aromatic aminesBAYER AG·Filed 1995·Granted Sep 15, 1998·26 cites·10 claims
- 0780US5962365AProcess for the manufacture of aromatic amines by gas-phase hydrogenation and catalyst useful thereofBAYER AG·Filed 1997·Granted Oct 5, 1999·17 cites·3 claims
- 0878US6043395AProcess for preparing variable mixtures of cyclohexyl-amine and dicyclohexylamineBAYER AG·Filed 1999·Granted Mar 28, 2000·17 cites·21 claims
- 0976US5484576AFixed bed reactors having a short catalyst bed in the direction of flowBAYER AG·Filed 1993·Granted Jan 16, 1996·36 cites·12 claims
- 1075US5786521AProcess for preparing hydroxymethylcyclopropaneBAYER AG·Filed 1997·Granted Jul 28, 1998·16 cites·9 claims
- 1174US6156919AProcess for the preparation of aliphatic oligocarbonate diols from dimethyl carbonate and aliphatic diolsBAYER AG·Filed 1999·Granted Dec 5, 2000·13 cites·16 claims
- 1272US8530676B2Process for producing vinylene carbonateLANGER REINHARD·Filed 2006·Granted Sep 10, 2013·2 cites·5 claims
- 1367US6043394AProcess for producing aromatic amines by gaseous phase hydrogenationBAYER AG·Filed 1997·Granted Mar 28, 2000·29 cites·4 claims
- 1466US5196592AProcess for the preparation of diphenylaminesBAYER AG·Filed 1991·Granted Mar 23, 1993·9 cites·20 claims
- 1563US6242649B1Continuous method for producing aromatic aminesBAYER AG·Filed 1998·Granted Jun 5, 2001·8 cites·13 claims
- 1661US6054619AProcess for preparing cycloaliphatic aminesBAYER AG·Filed 1999·Granted Apr 25, 2000·7 cites·12 claims
- 1760US2025135374A1Method for producing mixtures containing 2-(2-hydroxyethyl)-piperidinyl carbamide acid secondary butyl esterSALTIGO GMBH·Filed 2022·Application pending·0 cites
- 1859US5679858AProcess for the manufacture of aromatic amines by gas-phase hydrogenation and catalyst useful thereofBAYER AG·Filed 1996·Granted Oct 21, 1997·18 cites·6 claims
- 1958US7074941B2Process for preparing 2-alkyl-3-aryl- and -heteroaryloxaziridines and novel 2-alkyl-3-aryloxaziridinesBAYER AG·Filed 2004·Granted Jul 11, 2006·1 cites·2 claims
- 2057US5856516AProcess for the preparation of carbazoleBAYER AG·Filed 1997·Granted Jan 5, 1999·6 cites·20 claims
- 2157US5583251AProcess for the production of isocyanates and for the production of light-colored foams therefromBAYER AG·Filed 1995·Granted Dec 10, 1996·6 cites·4 claims
- 2253US7999122B2Method of purifying vinylene carbonateSALTIGO GMBH·Filed 2006·Granted Aug 16, 2011·0 cites·4 claims
- 2352US8071792B2High-purity vinylene carbonate and a method of purifying vinylene carbonateLANGER REINHARD·Filed 2006·Granted Dec 6, 2011·0 cites·4 claims
- 2451US7094923B2Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitro benzyl alcohols, esters and/or ethersBAYER AG·Filed 2005·Granted Aug 22, 2006·0 cites·7 claims
- 2551US5258554AProcess for monobenzylation of p-substituted phenolsBAYER AG·Filed 1992·Granted Nov 2, 1993·4 cites·20 claims
- 2647US8203006B2Process for producing vinylene carbonateLANGER REINHARD·Filed 2006·Granted Jun 19, 2012·0 cites·7 claims
- 2747US7671217B2Method for the decarboxylation of dicarboxylic acidsLANXESS DEUTSCHLAND GMBH·Filed 2003·Granted Mar 2, 2010·0 cites·11 claims
- 2847US6429344B1Process for the preparation of d,I-mentholBAYER AG·Filed 1999·Granted Aug 6, 2002·3 cites·11 claims
- 2945US6740761B2Process for preparing 2-alkyl-3aryl-and-heteroaryloxaziridines and novel 2-alkyl-3-aryloxaziridinesBAYER AG·Filed 2001·Granted May 25, 2004·0 cites·9 claims
- 3045US2009131687A1Method of storing and transporting vinylene carbonateLANGER REINHARD·Filed 2006·Application pending·0 cites
- 3144US6710217B1Method for producing 4-chlorobiphenyl and 4-chlorobiphenyl-specific specificationsBAYER AG·Filed 2000·Granted Mar 23, 2004·0 cites·10 claims
- 3243US7629490B2Process for hydrolysing cyclopropanecarboxylic esters to the free acidLANXESS DEUTSCHLAND GMBH·Filed 2006·Granted Dec 8, 2009·0 cites·19 claims
- 3343US6900349B2Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitrol benzyl alcohols, esters and/or ethersBAYER AG·Filed 2001·Granted May 31, 2005·0 cites·17 claims
- 3443US6335470B1Method for producing variable mixtures of cyclohexylamine and dicyclohexylamineFiled 1998·Granted Jan 1, 2002·2 cites·8 claims
- 3543US2010331570A1Method for the nitration of substituted benzenes in the presence of propionic acidSALTIGO GMBH·Filed 2008·Application pending·0 cites
- 3640US5449806AProcess for the preparation of dialkyl carbonatesBAYER AG·Filed 1994·Granted Sep 12, 1995·6 cites·20 claims
- 3739US6933406B1Method for producing 2-halo-6-nitrobenzoic acidsBAYER AG·Filed 2000·Granted Aug 23, 2005·0 cites·14 claims
- 3839US6753444B2Method for producing 2,3,5,6-tetrahalogen-xylyidene compoundsBAYER AG·Filed 2001·Granted Jun 22, 2004·0 cites·15 claims
- 3938US6077975AProcess for preparing dicycloaliphatic aminesBAYER AG·Filed 1999·Granted Jun 20, 2000·5 cites·10 claims
- 4037US6111140ARu--Pd halogen-free catalyzers and method for producing cycloaliphatic aminesBAYER AG·Filed 1997·Granted Aug 29, 2000·4 cites·20 claims
- 4137US5292953AProcess for the preparation of azomethinesBAYER AG·Filed 1993·Granted Mar 8, 1994·1 cites·19 claims
- 4237US2005119445A1Polyamino acids and method for producing the sameFiled 2003·Application pending·0 cites
- 4336US5298659AMethod for the preparation of azomethinesBAYER AG·Filed 1993·Granted Mar 29, 1994·1 cites·18 claims
- 4434US6080890AProduction of aromatic amines by means of novel hydrogenation catalystsBAYER AG·Filed 1998·Granted Jun 27, 2000·3 cites·2 claims
- 4531US5728896AProcess for the preparation of hydroxymethyl-cyclopropaneBAYER AG·Filed 1996·Granted Mar 17, 1998·0 cites·12 claims
- 4630US5585471AMethod for preparing a mixture of α- and β-chloroethyl-glucopyranoseWOLFF WALSRODE AG·Filed 1994·Granted Dec 17, 1996·0 cites·5 claims
- 4728US2002019573A1Process for the preparation of d,l-mentholFiled 2001·Application pending·0 cites
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