Chaparral Steel Company
Patent Owner
Stats
- 4 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 22, 2008 most recent publication
Details
- 4 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 71 Total Citation Count
- Oct 30, 1986 Earliest Filing
- 7 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
6035683 Method of casting and rolling and roll stand arrangement for rolling finished sections (sheet piling sections) from a preliminary section arriving from a continuous casting machine and having approximate final dimensionsJul 09, 98Mar 14, 00[B21B]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
6860392 Device for concentrating metallic coins produced from shredder operationsExpiredSep 30, 02Mar 01, 05[B07B]
5685524 Direct ironmaking or steelmaking apparatus using self-reducing iron oxide pelletsExpiredJan 16, 96Nov 11, 97[C21B]
5133205 System and process for forming thin flat hot rolled steel stripExpiredNov 13, 90Jul 28, 92[B21B]
5082746 As-continuously cast beam blank and method for casting continuously cast beam blankExpiredApr 20, 90Jan 21, 92[E04C, A22D]
4824492 Method for producing a precipitation hardenable martensitic low alloy steel forgingExpiredDec 23, 87Apr 25, 89[C21D]
4744406 Horizontal continuous casting apparatus with break ring formed integral with moldExpiredOct 30, 86May 17, 88[B22D]
Top Inventors for This Owner
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