Inventor · disambiguated record
Gerhard Pietzka
Also filed as: PIETZKA GERHARD
4 granted patents·52 citations·filing 1977–1978
76Inventor score
Technology areasC10B
Top patents by PatentIndex Score
4 records- 0181US4219405AMethod of continuously producing cokeBERGWERKSVERBAND GMBH·Filed 1978·Granted Aug 26, 1980·24 cites·23 claims
- 0269US4289604AMethod of producing an isotropic cokeBERGWERKSVERBAND GMBH·Filed 1977·Granted Sep 15, 1981·11 cites·2 claims
- 0366US4111794AMethod of producing pitch cokeSIGRI ELEKTROGRAPHIT GMBH·Filed 1977·Granted Sep 5, 1978·11 cites·5 claims
- 0450US4137150AMethod for the manufacture of a coal-tar pitch cokeSIGRI ELEKTROGRAPHIT GMBH·Filed 1977·Granted Jan 30, 1979·6 cites·3 claims
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