Assignee
CHAPARRAL STEEL CO
US·6 granted patents·61 citations·filing 1986–2006
Top patents by PatentIndex Score
6 records- 0188US7018140B1Z-shaped sheet pilingCHAPARRAL STEEL CO·Filed 2004·Granted Mar 28, 2006·35 cites·4 claims
- 0273US4824492AMethod for producing a precipitation hardenable martensitic low alloy steel forgingCHAPARRAL STEEL CO·Filed 1987·Granted Apr 25, 1989·14 cites·2 claims
- 0362US7168891B2Z-shaped sheet pilingCHAPARRAL STEEL CO·Filed 2006·Granted Jan 30, 2007·2 cites·5 claims
- 0450US7360969B2Z-shaped sheet pilingCHAPARRAL STEEL CO·Filed 2006·Granted Apr 22, 2008·0 cites·6 claims
- 0534US4744406AHorizontal continuous casting apparatus with break ring formed integral with moldCHAPARRAL STEEL CO·Filed 1986·Granted May 17, 1988·3 cites·6 claims
- 0622US5685524ADirect ironmaking or steelmaking apparatus using self-reducing iron oxide pelletsCHAPARRAL STEEL CO·Filed 1996·Granted Nov 11, 1997·7 cites·34 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →