Inventor
ZENZ FREDERICK A
13 patents
⚠️ This page may combine multiple inventors who share the name “ZENZ FREDERICK A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DUCON CO
5 patentsUS4072130AFeb 7, 1978
Apparatus and method for generating steam
DUCON CO17 citations72
US4260298AApr 7, 1981
Control of solids discharge from pressurized vessel
DUCON CO6 citations61
US4155728AMay 22, 1979
Screenless granular bed filter
DUCON CO1 citations61
US4140497AFeb 20, 1979
Screenless granular bed filter
DUCON CO1 citations61
US4067704AJan 10, 1978
Granular bed filter
DUCON CO4 citations61