Assignee
VOEST ALPINE STAHL DONAWITZ
AT·9 granted patents·38 citations·filing 1988–1990
Top patents by PatentIndex Score
9 records- 0178US4940487AProcess for utilizing of zinc-containing metallurgical dusts and sludgesVOEST ALPINE STAHL DONAWITZ·Filed 1989·Granted Jul 10, 1990·23 cites·11 claims
- 0241US4993689AConvertor for continuously melting scrap with tapping meansVOEST ALPINE STAHL DONAWITZ·Filed 1989·Granted Feb 19, 1991·4 cites·6 claims
- 0339US4925489AProcess for melting scrap iron, sponge iron and/or solid pig ironVOEST ALPINE STAHL DONAWITZ·Filed 1988·Granted May 15, 1990·4 cites·6 claims
- 0435US4957547AProcess for continuously melting of steelVOEST ALPINE STAHL DONAWITZ·Filed 1988·Granted Sep 18, 1990·3 cites·14 claims
- 0534US4895594AProcess for continuously melting scrapVOEST ALPINE STAHL DONAWITZ·Filed 1988·Granted Jan 23, 1990·2 cites·1 claims
- 0627US4950325AProcess for heating steel melts and an apparatus for carrying out the processVOEST ALPINE STAHL DONAWITZ·Filed 1989·Granted Aug 21, 1990·0 cites·7 claims
- 0727US4941913AProcess for heating steel melts as well as device for performing this processVOEST ALPINE STAHL DONAWITZ·Filed 1989·Granted Jul 17, 1990·0 cites·12 claims
- 0826US5116588AProcess for reduction of sulfur emission during sintering processesVOEST ALPINE STAHL DONAWITZ·Filed 1990·Granted May 26, 1992·2 cites·8 claims
- 0919US5060496AProcedure for producing coil-forming tubes in an inert enviromentVOEST ALPINE STAHL DONAWITZ·Filed 1989·Granted Oct 29, 1991·0 cites·6 claims
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