Inventor · disambiguated record
Ulrich Penzel
Also filed as: PENZEL ULRICH
23 granted patents·6 pending applications·411 citations·filing 1999–2013
96Inventor score
Top patents by PatentIndex Score
29 records- 0195US7584629B2Separation of a substance mixture consisting of hydrogen chloride and phosgeneBASF AG·Filed 2003·Granted Sep 8, 2009·57 cites·16 claims
- 0292US6433219B1Method for the production of methylenedi(phenylamine and methylenedi(phenyl isocyanate)BASF AG·Filed 1999·Granted Aug 13, 2002·56 cites·13 claims
- 0390US6576788B1Method for producing mixtures consisting of diphenylmethane diisocyanates and polyphenylene-polymethylene-polyisocyanates containing a reduced amount of chlorinated secondary products and with a reduced iodine color indexBASF AG·Filed 1999·Granted Jun 10, 2003·66 cites·14 claims
- 0488US6831192B2Process for preparing methylenedianiline and methylenebis(phenyl isocyanate)BASF AG·Filed 2002·Granted Dec 14, 2004·20 cites·13 claims
- 0588US6140539APreparation of aminesBASF AG·Filed 2000·Granted Oct 31, 2000·55 cites·12 claims
- 0687US7230130B2Process for preparing methylenedianiline and methylenebis (phenylisocyanate)BASF AG·Filed 2004·Granted Jun 12, 2007·17 cites·2 claims
- 0785US7342134B2Method for the distillative recovery of toluylenediamineBASF AG·Filed 2005·Granted Mar 11, 2008·8 cites·12 claims
- 0884US8895783B2Monitoring of the stoichiometric ratio in the reaction of nitroaromatics with hydrogenBASF SE·Filed 2013·Granted Nov 25, 2014·4 cites·15 claims
- 0984US8759569B2Process for the production of isocyanates, preferably diisocyanates and polyisocyanates with solvent recirculationSCHELLING HEINER·Filed 2010·Granted Jun 24, 2014·4 cites·20 claims
- 1083US7851648B2Method for the continuous production of isocyanatesBASF AG·Filed 2003·Granted Dec 14, 2010·14 cites·18 claims
- 1183US6900348B1Light isocyanates, method for producing them and use thereofBASF AG·Filed 2000·Granted May 31, 2005·24 cites·18 claims
- 1282US7595424B2Method for producing aromatic amines or aliphatic amino alcoholsBASF AG·Filed 2006·Granted Sep 29, 2009·7 cites·13 claims
- 1380US7524405B2Method for separating out solvent from a reaction mixture resulting from an isocyanate synthesis and for purifying this solventBASF AG·Filed 2003·Granted Apr 28, 2009·11 cites·18 claims
- 1476US8829232B2Process for preparing aromatic isocyanatesPENZEL ULRICH·Filed 2009·Granted Sep 9, 2014·5 cites·13 claims
- 1574US7091383B2Method for the production of aminesBASF AG·Filed 2003·Granted Aug 15, 2006·8 cites·8 claims
- 1671US7468461B2Method for the production of aminesBASF AG·Filed 2008·Granted Dec 23, 2008·2 cites·14 claims
- 1770US6350911B1Method for producing aminesBASF AG·Filed 1999·Granted Feb 26, 2002·33 cites·14 claims
- 1866US6896401B2Method and device for reducing byproducts in the mixture of educt streamsBASF AG·Filed 2001·Granted May 24, 2005·12 cites·14 claims
- 1961US8519179B2Method of measuring entry of water into phosgene-conducting plantsSCHELLING HEINER·Filed 2010·Granted Aug 27, 2013·1 cites·16 claims
- 2061US7408086B2Ni/TiO2 hydrogenation catalystBASF AG·Filed 2002·Granted Aug 5, 2008·6 cites·8 claims
- 2156US7928270B2Process for distillatively removing dinitrotoluene from process wastewater from the preparation of dinitrotoluene by nitrating of toluene with nitrating acidBASF AG·Filed 2007·Granted Apr 19, 2011·1 cites·16 claims
- 2256US2010015012A1Method for producing aromatic amines or aliphatic amino alcoholsBASF AG·Filed 2009·Application pending·0 cites
- 2347US2007149814A1Method for the production of aminesBASF AG·Filed 2004·Application pending·0 cites
- 2440US8609899B2Process for preparing toluenediamine by hydrogenation of dinitrotolueneRAICHLE ANDREAS·Filed 2011·Granted Dec 17, 2013·0 cites·19 claims
- 2540US6867324B2Method and device for the continuous production of organic mono or polyisocyanatesBASF AG·Filed 2001·Granted Mar 15, 2005·0 cites·6 claims
- 2637US2006089507A1Method for separating isocyanates out from a reaction mixtureBASF AG·Filed 2003·Application pending·0 cites
- 2736US2007232827A1Isocyanate Production MethodBASF AG·Filed 2002·Application pending·0 cites
- 2836US2006116529A1Method for the production of isocyanatesBASF AG·Filed 2003·Application pending·0 cites
- 2930US2012289746A1Process for working up an isocyanate-comprising streamPENZEL ULRICH·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →