Inventor
PENNEMANN BERND
DE26 patents
⚠️ This page may combine multiple inventors who share the name “PENNEMANN BERND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
COVESTRO DEUTSCHLAND AG
9 patentsUS11702381B1Jul 18, 2023
Method for operating a rectification column
COVESTRO DEUTSCHLAND AG5 citations68
US11231727B2Jan 25, 2022
Method for continuously producing a product by way of at least two coupled-together chemical reactions
COVESTRO DEUTSCHLAND AG0 citations57
US10698424B2Jun 30, 2020
Method for continuously producing a product by way of at least two coupled-together chemical reactions
COVESTRO DEUTSCHLAND AG0 citations47
US10799810B2Oct 13, 2020
Cascade tray, rectifying column containing said cascade tray, method for operating such a rectifying column, and use of same
COVESTRO DEUTSCHLAND AG0 citations46
US10155720B2Dec 18, 2018
Method for producing toluenediamine
COVESTRO DEUTSCHLAND AG0 citations44
US12577194B2Mar 17, 2026
Method for the hydrogenation of aromatic nitro compounds
COVESTRO DEUTSCHLAND AG0 citations42
US9896407B2Feb 20, 2018
Exhaust gas cleaning in a method for continuously producing dinitrotoluene
COVESTRO DEUTSCHLAND AG0 citations41
US10041921B2Aug 7, 2018
Device and method for producing aromatic amines
COVESTRO DEUTSCHLAND AG0 citations39
US9518006B2Dec 13, 2016
Method for producing diaminotoluene
COVESTRO DEUTSCHLAND AG0 citations37
BAYER MATERIALSCIENCE AG
5 patentsUS8357827B2Jan 22, 2013
Process for the continuous preparation of nitrobenzene
BAYER MATERIALSCIENCE AG8 citations80
US7307190B2Dec 11, 2007
Process for the preparation of toluenediamine
BAYER MATERIALSCIENCE AG10 citations80
US7041858B1May 9, 2006
Process for the production of dinitrotoluene
BAYER MATERIALSCIENCE AG8 citations68
US7495136B2Feb 24, 2009
Process for the production of dinitrotoluene
BAYER MATERIALSCIENCE AG4 citations62
US7511176B2Mar 31, 2009
Process for the preparation of toluenediamines by catalytic hydrogenation of dinitrotoluenes
BAYER MATERIALSCIENCE AG3 citations61
BAYER AG
4 patentsUS6395934B1May 28, 2002
Raney nickel catalysts, a method for producing said raney nickel catalysts and the use of the same for hydrogenating organic compounds
BAYER AG44 citations89
US5498744AMar 12, 1996
Process for the preparation of dimethyl carbonate
BAYER AG31 citations89
US5593936AJan 14, 1997
Hydrated niobium oxide and hydrated tantalum oxide catalysts, their preparation and a process for preparing N-alkylated anilines using these catalysts
BAYER AG2 citations58
US5728896AMar 17, 1998
Process for the preparation of hydroxymethyl-cyclopropane
BAYER AG0 citations48