Inventor
KRIEGEL ERNST
DE6 patents
Patents
6 patentsUS4485003ANov 27, 1984
Supercritical extraction and simultaneous catalytic hydrogenation of coal
KRUPP GMBH47 citations92
US4522707AJun 11, 1985
Method for processing used oil
KRUPP GMBH27 citations91
US4532992AAug 6, 1985
Method for recovering petroleum
KRUPP GMBH22 citations81
US4446921AMay 8, 1984
Method for underground gasification of solid fuels
KRUPP GMBH20 citations81
US5229000AJul 20, 1993
Apparatus and method for the separation of a viscous mixture
KRUPP GMBH14 citations72
US4215101AJul 29, 1980
Method and apparatus for performing chemical and/or physical treatments
KRUPP GMBH8 citations71