Assignee
OTTO FEUERFEST GMBH
DE·6 granted patents·119 citations·filing 1987–1992
Top patents by PatentIndex Score
6 records- 0171US4833115ACeramic honeycombed elongated catalyst carrier and method for production of sameOTTO FEUERFEST GMBH·Filed 1987·Granted May 23, 1989·46 cites·12 claims
- 0267US5322826ARefractory materialOTTO FEUERFEST GMBH·Filed 1992·Granted Jun 21, 1994·22 cites·22 claims
- 0358US4916106ASupported catalyst and process for its production for the reduction of nitrogen oxidesOTTO FEUERFEST GMBH·Filed 1987·Granted Apr 10, 1990·22 cites·8 claims
- 0454US4866015ASilica brick and process for producing sameOTTO FEUERFEST GMBH·Filed 1988·Granted Sep 12, 1989·16 cites·21 claims
- 0546US4917772AOven door assemblyOTTO FEUERFEST GMBH·Filed 1988·Granted Apr 17, 1990·9 cites·9 claims
- 0638US5137602AHeating chamber for a coke oven and method of heating a coke ovenOTTO FEUERFEST GMBH·Filed 1991·Granted Aug 11, 1992·4 cites·20 claims
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