Krupp Stahl
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- May 29, 1990 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 51 Total Citation Count
- Dec 22, 1980 Earliest Filing
- 11 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
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Recent Publications
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Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4928931 Method for controlling discharge of steel from a casting ladleExpiredSep 20, 88May 29, 90[C21B]
4659398 Method for reducing internal stresses of roller straightened railsExpiredJan 14, 86Apr 21, 87[C21D, B21D, B21B]
4604135 Apparatus and process for the metallurgical aftertreatment of premelted metalsExpiredMay 29, 85Aug 05, 86[C21C]
4575397 Rail having high resistance to wear in its head and high resistance to rupture in its footExpiredOct 01, 84Mar 11, 86[C21D]
4411524 Apparatus for the spectrometric analysis of the chemical composition of metallic partsExpiredJun 15, 81Oct 25, 83[G01N]
4368071 Process for the manufacture of desulfurizing agents for crude iron or steel meltsExpiredJan 02, 81Jan 11, 83[C21C]
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