Membership
Tour
Register
Log in
Hans-Jurgen Arpe
Follow
Person
Kelkheim, DE
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Process for isomerizing monochlorotoluenes or dichlorotoluenes
Patent number
4,935,561
Issue date
Jun 19, 1990
Hoechst Aktiengesellschaft
Klaus Eichler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the isomerization of o-, m- and/or p-toluidine
Patent number
4,720,583
Issue date
Jan 19, 1988
Hoechst Aktiengesellschaft
Klaus Eichler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing p-chlorotoluene and/or m-chlorotoluene
Patent number
4,650,915
Issue date
Mar 17, 1987
Hoechst Aktiengesellschaft
Hans-Jurgen Arpe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of o-toluidine and/or m-toluidine and/o...
Patent number
4,554,380
Issue date
Nov 19, 1985
Hoechst Aktiengesellschaft
Hans-Jurgen Arpe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for carbonylating formaldehyde acetals
Patent number
4,501,917
Issue date
Feb 26, 1985
Hoechst Aktiengesellschaft
Hans-Joachim Schmidt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of ethanol from synthesis gas
Patent number
4,442,228
Issue date
Apr 10, 1984
Hoechst Aktiengesellschaft
Ernst I. Leupold
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of ethers of hydroxy-pivalaldehyde
Patent number
4,324,921
Issue date
Apr 13, 1982
Hoechst Aktiengesellschaft
Hans-Jurgen Arpe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of oxygen-containing carbon compounds f...
Patent number
4,288,558
Issue date
Sep 8, 1981
Hoechst Aktiengesellschaft
Hans-Joachim Schmidt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of lower alkenes from methanol and/or d...
Patent number
4,247,731
Issue date
Jan 27, 1981
Hoechst Aktiengesellschaft
Friedrich Wunder
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of oxygen-containing carbon compounds f...
Patent number
4,224,236
Issue date
Sep 23, 1980
Hoechst Aktiengesellschaft
Friedrich Wunder
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of ethylene glycol-dimethylether (dimet...
Patent number
4,169,959
Issue date
Oct 2, 1979
Hoechst Aktiengesellschaft
Hans-Jurgen Arpe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of acetic acid ethyl ester
Patent number
4,128,727
Issue date
Dec 5, 1978
Hoechst Aktiengesellschaft
Ernst I. Leupold
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of glycolic acid or its esters
Patent number
4,128,575
Issue date
Dec 5, 1978
Hoechst Aktiengesellschaft
Ernst I. Leupold
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the purification of carboxylic acids
Patent number
4,110,372
Issue date
Aug 29, 1978
Hoechst Aktiengesellschaft
Hansjorg Hey
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of bromine and hydrogen bromide from am...
Patent number
4,107,263
Issue date
Aug 15, 1978
Hoechst Aktiengesellschaft
Lothar Schulz
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for selective production of bromine
Patent number
4,105,753
Issue date
Aug 8, 1978
Hoechst Aktiengesellschaft
Lothar Schulz
C01 - INORGANIC CHEMISTRY