Inventor
STEPHAN HANS-WERNER
15 patents
⚠️ This page may combine multiple inventors who share the name “STEPHAN HANS-WERNER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST AG
14 patentsUS4163760AAug 7, 1979
Continuous production of organic phosphines
HOECHST AG24 citations81
US3978195AAug 31, 1976
Process for the production of substantially water-insoluble linear ammonium polyphosphates
HOECHST AG23 citations78
US4530769AJul 23, 1985
Process for separating carbon black from an aqueous suspension
HOECHST AG9 citations72
US4273752AJun 16, 1981
Process for making red phosphorus
HOECHST AG6 citations72
US4517163AMay 14, 1985
Process for making titanium dioxide concentrates
HOECHST AG5 citations61
US4355010AOct 19, 1982
Process for removing phosphorus in vapor form and phosphanes from gas mixtures
HOECHST AG6 citations61
US4330504AMay 18, 1982
Apparatus for making red phosphorus
HOECHST AG2 citations61
US4278647AJul 14, 1981
Production of phosphorous acid
HOECHST AG3 citations61
US3931294AJan 6, 1976
Production of 2-phenyl-ethylene phosphonic acid
HOECHST AG3 citations61
US4447400AMay 8, 1984
Metering device
HOECHST AG3 citations60
US4402812ASep 6, 1983
Electrolytic cell
HOECHST AG3 citations60
US4078023AMar 7, 1978
Production of O,O-dialkylthionophosphoric acid chlorides
HOECHST AG5 citations60
US4757156AJul 12, 1988
Process for making tertiary alkylphosphines
HOECHST AG4 citations57
US4540558ASep 10, 1985
Process for removing organic contaminants from wet-processed phosphoric acid
HOECHST AG1 citations52