Inventor · disambiguated record
Eberhard Zirngiebl
Also filed as: ZIRNGIEBL EBERHARD
28 granted patents·4 pending applications·365 citations·filing 1974–2022
96Inventor score
Top patents by PatentIndex Score
32 records- 0196US6548445B1Supported catalysts containing a platinum metal and process for preparing diaryl carbonatesBAYER AG·Filed 1996·Granted Apr 15, 2003·87 cites·20 claims
- 0291US5354923AProcess for the preparation of aromatic carbonic diestersBAYER AG·Filed 1991·Granted Oct 11, 1994·43 cites·10 claims
- 0389US6001768ASupported catalysts containing a platinum metal and process for preparing diaryl carbonatesBAYER AG·Filed 1996·Granted Dec 14, 1999·41 cites·20 claims
- 0489US3970528AProcess for the purification of electrolysis brineBAYER AG·Filed 1975·Granted Jul 20, 1976·58 cites·7 claims
- 0578US4078978APurification of electrolysis brine for diaphragm cellsBAYER AG·Filed 1977·Granted Mar 14, 1978·19 cites·3 claims
- 0676US6583327B2Continuous isothermal process for preparing mononitrotoluenesBAYER AG·Filed 2001·Granted Jun 24, 2003·9 cites·11 claims
- 0770US6586645B2Continuous adiabatic process for preparing nitrochlorobenzeneBAYER AG·Filed 2002·Granted Jul 1, 2003·6 cites·10 claims
- 0868US5912358AProcess for preparing 2-pyrrolidonesBAYER AG·Filed 1996·Granted Jun 15, 1999·14 cites·13 claims
- 0962US5410085AProcess for the preparation of chlorine-substituted aromatic amines and of catalystsBAYER AG·Filed 1993·Granted Apr 25, 1995·22 cites·10 claims
- 1057US4952624APolyarylene sulfide mixtures with reduced radical formation under highly accelerated weatheringBAYER AG·Filed 1989·Granted Aug 28, 1990·10 cites·5 claims
- 1154US5760247AProcess for the preparation of carbazoleBAYER AG·Filed 1997·Granted Jun 2, 1998·5 cites·5 claims
- 1254US5414104AProcess for preparing dialkyl carbonatesBAYER AG·Filed 1994·Granted May 9, 1995·5 cites·20 claims
- 1354US2008267813A1Corrosion inhibitor for protecting metallic materials in strongly alkaline mediumHEUER LUTZ·Filed 2008·Application pending·0 cites
- 1450US5886232AProcess for preparing substituted cyclohexanonesBAYER AG·Filed 1996·Granted Mar 23, 1999·4 cites·7 claims
- 1550US5663443ARuthenium catalysts, their preparation and a process for preparing cycloaliphatic polyamines using these catalystsBAYER AG·Filed 1995·Granted Sep 2, 1997·4 cites·8 claims
- 1650US2024157343A1Method for the hydrogenation of aromatic nitro compoundsCOVESTRO DEUTSCHLAND AG·Filed 2022·Application pending·0 cites
- 1748US7468158B2Corrosion inhibitor for protecting metallic materials in strongly alkaline mediumLANXESS DEUTSCHLAND GMBH·Filed 2003·Granted Dec 23, 2008·0 cites·2 claims
- 1846US6420491B1Method for hydrogenating aromatic polymers in the presence of hydrocarbons which contain oxygenBAYER AG·Filed 1999·Granted Jul 16, 2002·7 cites·7 claims
- 1946US4082631AAbsorption of chlorine gasBAYER AG·Filed 1976·Granted Apr 4, 1978·9 cites·6 claims
- 2044US6509510B1Method for hydrogenating aromatic polymers in the presence of special catalystsBAYER AG·Filed 1999·Granted Jan 21, 2003·6 cites·10 claims
- 2141US6768032B2Continuous isothermal process for preparing mononitrotoluenes in the presence of phosphoric acidBAYER CHEMICALS AG·Filed 2002·Granted Jul 27, 2004·0 cites·16 claims
- 2241US5593936AHydrated niobium oxide and hydrated tantalum oxide catalysts, their preparation and a process for preparing N-alkylated anilines using these catalystsBAYER AG·Filed 1995·Granted Jan 14, 1997·2 cites·4 claims
- 2340US5616730AProcess for preparing succinic anhydrideBAYER AG·Filed 1995·Granted Apr 1, 1997·2 cites·9 claims
- 2438US5173466ACatalyst for the reduction of nitrogen oxides from waste gases and a process for its productionBAYER AG·Filed 1991·Granted Dec 22, 1992·9 cites·7 claims
- 2537US6794549B2Continuous adiabatic process for nitrating chlorobenzeneBAYER AG·Filed 2003·Granted Sep 21, 2004·0 cites·15 claims
- 2636US5476959AProcess for the preparation of dialkyl carbonatesBAYER AG·Filed 1994·Granted Dec 19, 1995·1 cites·15 claims
- 2733US6353142B1Process for the adiabatic preparation of 3,4-dichloronitrobenzeneBAYER AG·Filed 2000·Granted Mar 5, 2002·0 cites·2 claims
- 2832US2014012046A1Isomerisation catalystHEUER LUTZ·Filed 2011·Application pending·0 cites
- 2931US5728896AProcess for the preparation of hydroxymethyl-cyclopropaneBAYER AG·Filed 1996·Granted Mar 17, 1998·0 cites·12 claims
- 3031US2017305825A1Improved method for preparing para-thymolLANXESS DEUTSCHLAND GMBH·Filed 2015·Application pending·0 cites
- 3130US5648500AProcess for the preparation of substituted 1,2,3,4-tetrahydrocarbazolesBAYER AG·Filed 1996·Granted Jul 15, 1997·0 cites·15 claims
- 3223US4035771AProcess for the remote transmission and indication of electrical measured values in electrolysis cellsBAYER AG·Filed 1974·Granted Jul 12, 1977·2 cites·19 claims
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