Description
MANUFACTURE OF IRON OR STEEL (preliminary treatment of ferrous ores or scrap C22B 1/00; electric heating H05B)
C21B
Technology
Sub-Class
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- 13 807 US PATENTS IN FORCE
- 108 US APPLICATIONS PENDING
- 1130 Total Patent Owners
- 4555 TOTAL INVENTORS
Subclasses
| Subclass | Title |
|---|---|
| 3/00 | General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06) |
| 3/02 | General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06) by applying additives, e.g. fluxing agents |
| 3/04 | General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06) Recovery of by-products, e.g. slag |
| 3/06 | General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06) Recovery of by-products, e.g. slag Treatment of liquid slag (slag wool C03B; slag stones C04B) |
| 3/08 | General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06) Recovery of by-products, e.g. slag Treatment of liquid slag (slag wool C03B; slag stones C04B) Cooling slag |
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 9,121,076 | Stave and brick constructions having refractory wear monitors and in process thermocouples | Jul 11, 12 | Sep 01, 15 | BERRY METAL COMPANY |
| 9,121,077 | Tuyere remover | Jun 22, 12 | Sep 01, 15 | TUBE CITY IMS CORPORATION |
| 9,115,412 | Method of manufacturing direct reduction iron and reduction firing apparatus | Jun 04, 13 | Aug 25, 15 | PANGANG GROUP COMPANY LTD., |
| 9,115,413 | Apparatus and methods for producing direct reduced iron | Mar 02, 11 | Aug 25, 15 | |
| 9,109,267 | Process for the introduction of inorganic solids into hot liquid melts | Jun 30, 11 | Aug 18, 15 | SACHTLEBEN CHEMIE GMBH |
| 9,102,990 | Apparatus and method for frame and brick constructions | Jul 08, 10 | Aug 11, 15 | BERRY METAL COMPANY |
| 9,103,503 | Device for injecting gas into a metallurgical vessel | Mar 28, 11 | Aug 11, 15 | SMS GROUP GMBH |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2015/0247,212 | BLOW PIPE STRUCTURE | Sep 10, 13 | Sep 03, 15 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
| 2015/0239,049 | SYNTHESIS OF NANOSTRUCTURES | Feb 27, 13 | Aug 27, 15 | NORTH CAROLINA STATE UNIVERSITY |
| 2015/0240,321 | ADVANCED TECHNOLOGY FOR IRON-CHROME ALLOYS PRODUCTION AND RELATED PLANT | Feb 25, 14 | Aug 27, 15 | |
| 2015/0240,322 | SLAG REMOVAL DEVICE AND SLAG REMOVAL METHOD | Sep 10, 13 | Aug 27, 15 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
| 2015/0233,640 | Blast Furnace Spool Liner | Aug 07, 13 | Aug 20, 15 | JPMORGAN CHASE BANK, NATIONAL ASSOCIATION |
| 2015/0225,804 | PULVERIZED-COAL INJECTION DEVICE, BLAST FURNACE FACILITY PROVIDED WITH THE SAME, AND PULVERIZED-COAL SUPPLYING METHOD | Sep 10, 13 | Aug 13, 15 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
Top Owners in This Class
Top Owners in This Subclass
Applications Filed in This Class - By Year
Applications Filed in This Subclass - By Year
Patents Issued To Date - By Filing Year
Average Time to Issuance
- 35 Months (last 2 years Issuances)
- 35 Months (last 5 years Issuances)
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