Inventor

PRESSLER WILFRIED

8 patents

⚠️ This page may combine multiple inventors who share the name “PRESSLER WILFRIED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HOECHST AG

7 patents

US5149759ASep 22, 1992

Process for preparing aromatic polyamides of high hydrolysis resistance with controlled water content of diamine

HOECHST AG10 citations68

US5463148AOct 31, 1995

Process for the preparation of chlorofluoronitrobenzenes

HOECHST AG5 citations61

US4226997AOct 7, 1980

8-Chloro-5,6,7,8-tetrahydro-2-quinolone and 8-bromo-5,6,7,8-tetrahydro-2-quinolone, the hydrochloride or hydrobromide thereof and process for their manufacture

HOECHST AG2 citations60

US5545768AAug 13, 1996

Process for the preparation of chlorofluronitrobenzenes and difluoronitrobenzenes

HOECHST AG6 citations55

US5276203AJan 4, 1994

Process for the preparation of 1,2-bis-(2-nitrophenoxy)-ethane

HOECHST AG0 citations49

US4277606AJul 7, 1981

8-Oxo-5,6,7,8-tetrahydro-2-quinolone and process for the preparation thereof

HOECHST AG0 citations49

US4219500AAug 26, 1980

Process for the manufacture of N,N'-diacetylethylene diamine

HOECHST AG1 citations49

CLARIANT GMBH

1 patent

US6265607B1Jul 24, 2001

Process for the preparation of 4-(4'-chlorobiphenyl-4-yl)-4-keto-2-methylenebutyric acid

CLARIANT GMBH0 citations48