Inventor · disambiguated record
Heinrich Echterhoff
Also filed as: ECHTERHOFF HEINRICH
3 granted patents·13 citations·filing 1974–1976
64Inventor score
Files withBERGWERKSVERBAND GMBH3
Top patents by PatentIndex Score
3 records- 0144US4086143ACoking method and arrangementBERGWERKSVERBAND GMBH·Filed 1976·Granted Apr 25, 1978·5 cites·13 claims
- 0236US3970523AProcesses of producing cokes of large lump size and improved strength from bituminous coalsBERGWERKSVERBAND GMBH·Filed 1974·Granted Jul 20, 1976·2 cites·10 claims
- 0334US4039342AFirebricksBERGWERKSVERBAND GMBH·Filed 1974·Granted Aug 2, 1977·6 cites·5 claims
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