Inventor
HAAS HANS
DE24 patents
⚠️ This page may combine multiple inventors who share the name “HAAS HANS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST AG
10 patentsUS4721608AJan 26, 1988
Spheroidal alkali metal polyphosphates of low apparent density, and process for making them
HOECHST AG8 citations71
US4717557AJan 5, 1988
Spheroidal alkali metal polyphosphates of low apparent density, and process for making them
HOECHST AG9 citations71
US4800055AJan 24, 1989
Process for making a granular product containing sodium triphosphate
HOECHST AG9 citations68
US4777025AOct 11, 1988
Process for making phosphorus pentoxide of diminished reactivity
HOECHST AG5 citations61
US4391783AJul 5, 1983
Process for making abrasion-resistant sodium tripolyphosphate
HOECHST AG4 citations61
US4968490ANov 6, 1990
Spheroidal alkali metal polyphosphates of low apparent density, and apparatus for making them
HOECHST AG2 citations60
US4534946AAug 13, 1985
Process for making alkali metal polyphosphates
HOECHST AG6 citations56
US4483837ANov 20, 1984
Process for making calciummonohydrogen phosphate dihydrate
HOECHST AG6 citations56
US4454054AJun 12, 1984
Sodium tripolyphosphate, process for making it, and its use
HOECHST AG2 citations53
US4642224AFeb 10, 1987
Process for reducing iron and vanadium in phosphoric acid solution
HOECHST AG1 citations49
BASF AG
5 patentsUS4119673AOct 10, 1978
Manufacture of concentrated aqueous solutions of formaldehyde
BASF AG13 citations72
US4010208AMar 1, 1977
Production of formaldehyde
BASF AG15 citations71
US3994977ANov 30, 1976
Manufacture of formaldehyde
BASF AG17 citations70
US4153410AMay 8, 1979
Production of sulfur-free combustion gases of low soot content
BASF AG5 citations58
US3932522AJan 13, 1976
Manufacture of formaldehyde
BASF AG4 citations57