Description
Class C22B : PRODUCTION OR REFINING OF METALS
Subclass 1/216: Preliminary treatment of ores or scrap Agglomerating; Briquetting; Binding; Granulating Sintering; Agglomerating in rotary furnaces
C22B 1/216
Sub-Class
Stats
- 8 US PATENTS IN FORCE
- 1 US APPLICATIONS PENDING
- 8 Total Patent Owners
- 39 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 9580769 | Device for the improvement of crude pellets and pelletizing process | Oct 21, 14 | Feb 28, 17 | VALE S.A. |
| 9045809 | Reclaiming and inhibiting activation of DRI fines | May 08, 13 | Jun 02, 15 | NU-IRON TECHNOLOGY, LLC |
| 8092574 | Method of producing reduced iron cast, and method of producing pig iron | Sep 02, 08 | Jan 10, 12 | NIPPON STEEL CORPORATION |
| 7846379 | Industrial furnace | Jul 08, 04 | Dec 07, 10 | Andritz Maerz GmbH |
| 7815710 | Metal oxide-containing green pellet for reducing furnace, method for production thereof, method of reduction thereof, and reduction facilities | Oct 30, 01 | Oct 19, 10 | NIPPON STEEL CORPORATION |
| 6332912 | Method to lower the formation of clods and the clustering tendency of reducible iron containing agglomerated material, in particular pellets | Nov 16, 99 | Dec 25, 01 | LUOSSAVAARA-KIIRUNAVAARA AB |
| 6251156 | Method of producing molten iron in duplex furnaces | Oct 29, 99 | Jun 26, 01 | MIDREX TECHNOLOGIES, INC., MIDREX DIRECT REDUCTION CORPORATION, |
| 6224820 | Method of producing a reduced metal, and traveling hearth furnace for producing same | Oct 05, 99 | May 01, 01 | KAWASAKI STEEL CORPORATION |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0279,767 | PRE-REDUCED PELLET PREPARATION APPARATUS AND METHOD BASED ON GRATE-ROTARY KILN | Jun 16, 22 | Aug 22, 24 | Baoshan Iron & Steel Co., Ltd. |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 43 Months (last 2 years Issuances)
- 43 Months (last 5 years Issuances)