Inventor
ROTTER FRANZ
8 patents
⚠️ This page may combine multiple inventors who share the name “ROTTER FRANZ”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ENERGY RECOVERY RES GROUP INC
4 patentsUS4308103ADec 29, 1981
Apparatus for the pyrolysis of comminuted solid carbonizable materials
ENERGY RECOVERY RES GROUP INC149 citations94
US4306506ADec 22, 1981
Gasification apparatus
ENERGY RECOVERY RES GROUP INC102 citations94
US4123332AOct 31, 1978
Process and apparatus for carbonizing a comminuted solid carbonizable material
ENERGY RECOVERY RES GROUP INC134 citations94
US4309195AJan 5, 1982
Apparatus for gasifying solid fuels and wastes
ENERGY RECOVERY RES GROUP INC56 citations90
VOEST ALPINE MASCHINENBAU
3 patentsUS4986498AJan 22, 1991
Device for determining the condition of railway switches or railway crossings
VOEST ALPINE MASCHINENBAU28 citations85
US4927102AMay 22, 1990
Reversing device for movable parts within the deflection area of a railway switch
VOEST ALPINE MASCHINENBAU5 citations59
US4917339AApr 17, 1990
Reversing device for swivelable rails or movable frogs within the crossing area of a railway switch
VOEST ALPINE MASCHINENBAU5 citations59