Zirngiebl; Eberhard

Patent Applications and Registrations

Patent applications and USPTO patent grants for Zirngiebl; Eberhard.The latest application filed is for "method for the hydrogenation of aromatic nitro compounds".

Company Profile

0.12.10

Zirngiebl; Eberhard - Koln DE
ZIRNGIEBL; Eberhard - Koeln DE
Zirngiebl; Eberhard - Cologne DE

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Method For The Hydrogenation Of Aromatic Nitro Compounds App 20220289662 - Sandbrink; Lennart ; et al.	2022-09-15
Improved Method For Preparing Para-thymol App 20170305825 - BOEGER; Uwe ; et al.	2017-10-26
Isomerisation Catalyst App 20140012046 - Heuer; Lutz ; et al.	2014-01-09
Corrosion inhibitor for protecting metallic materials in strongly alkaline medium Grant 7,468,158 - Heuer , et al. December 23, 2	2008-12-23
Corrosion inhibitor for protecting metallic materials in strongly alkaline medium App 20080267813 - Heuer; Lutz ; et al.	2008-10-30
Continuous adiabatic process for nitrating chlorobenzene Grant 6,794,549 - Demuth , et al. September 21, 2	2004-09-21
Continuous isothermal process for preparing mononitrotoluenes in the presence of phosphoric acid Grant 6,768,032 - Gotta , et al. July 27, 2	2004-07-27
Continuous adiabatic process for nitrating chlorobenzene App 20030181771 - Demuth, Ralf ; et al.	2003-09-25
Corrosion inhibitor for protecting metallic materials in strongly alkaline medium App 20030152479 - Heuer, Lutz ; et al.	2003-08-14
Continuous isothermal process for preparing mononitrotoluenes Grant 6,583,327 - Demuth , et al. June 24, 2	2003-06-24
Supported catalysts containing a platinum metal and process for preparing diaryl carbonates Grant 6,548,445 - Buysch , et al. April 15, 2	2003-04-15
Continuous adiabatic procss for preparing nitrochlorobenzene App 20020161269 - Demuth, Ralf ; et al.	2002-10-31
Continuous isothermal process for preparing mononitrotoluenes in the presence of phosphoric acid App 20020147372 - Gotta, Matthias ; et al.	2002-10-10
Continuous isothermal process for preparing mononitrotoluenes App 20020091290 - Demuth, Ralf ; et al.	2002-07-11
Supported catalysts containing a platinum metal and process for preparing diaryl carbonates Grant 6,001,768 - Buysch , et al. December 14, 1	1999-12-14
Process for the preparation of chlorine-substituted aromatic amines and of catalysts Grant 5,410,085 - Birkenstock , et al. April 25, 1	1995-04-25
Process for the preparation of aromatic carbonic diesters Grant 5,354,923 - Schon , et al. October 11, 1	1994-10-11
Catalyst for the reduction of nitrogen oxides from waste gases and a process for its production Grant 5,173,466 - Heins , et al. December 22, 1	1992-12-22
Polyarylene sulfide mixtures with reduced radical formation under highly accelerated weathering Grant 4,952,624 - Kohler , et al. August 28, 1	1990-08-28
Purification of electrolysis brine for diaphragm cells Grant 4,078,978 - Zirngiebl March 14, 1	1978-03-14
Process for the purification of electrolysis brine Grant 3,970,528 - Zirngiebl , et al. July 20, 1	1976-07-20

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