Inventor
ERPENBACH MARKUS
DE4 patents
Patents
4 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
US4399114AAug 16, 1983
Process for the dearsenification of polyphosphoric acid
HOECHST AG2 citations61
US4968490ANov 6, 1990
Spheroidal alkali metal polyphosphates of low apparent density, and apparatus for making them
HOECHST AG2 citations60