Description
Class C21B : MANUFACTURE OF IRON OR STEEL
Subclass 7/02: Blast furnaces (lifts associated with blast furnaces B66B 9/06) Internal forms
C21B 7/02
Sub-Class
Stats
- 7 US PATENTS IN FORCE
- 1 US APPLICATIONS PENDING
- 10 Total Patent Owners
- 41 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11542565 | Charging system, in particular for a shaft smelt reduction furnace | Dec 06, 18 | Jan 03, 23 | Paul Wurth SA |
| 9102990 | Apparatus and method for frame and brick constructions | Jul 08, 10 | Aug 11, 15 | Berry Metal Company |
| 8419423 | Hot air stove | Jul 09, 07 | Apr 16, 13 | Not available |
| 6645425 | Refractory batch, in particular for the production of a shaped body, and process for producing the shaped body | Jun 01, 00 | Nov 11, 03 | Refratechnik Holding GmbH, Refractechnik Holding GmbH, |
| 6528011 | Colloidal silica refractory system for an electric arc furnace | Mar 21, 01 | Mar 04, 03 | Magneco/Metrel, Inc. |
| 6443216 | Thermal jacket for a vessel | Jun 01, 00 | Sep 03, 02 | HANJOO METAL, MERCURY MARINE, A DIVISION OF BRUNSWICK CORPORATION, |
| 6017487 | Lid of preformed refractory material for metallurgical melting furnace | Nov 29, 93 | Jan 25, 00 | ALUMINUM COMPANY OF AMERICA, ARCONIC INC., |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2023/0366,048 | Blast furnace for ironmaking production | Sep 15, 20 | Nov 16, 23 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 45 Months (last 2 years Issuances)
- 45 Months (last 5 years Issuances)