Inventor

HELKER HEINRICH

DE4 patents

Patents

4 patents

US5779468AJul 14, 1998

Device for supplying gas to rotary kilns

BAYER AG30 citations87

US5431560AJul 11, 1995

Device for supplying gas to a cylindrical rotary kiln

BAYER AG10 citations64

US5667759ASep 16, 1997

Method for manufacturing alkali chromates from chromium ore

BAYER AG4 citations59

US5505918AApr 9, 1996

Method for manufacturing alkali chromates from chromium ore

BAYER AG0 citations49