C21B 7/16

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Class  C21B : MANUFACTURE OF IRON OR STEEL


Subclass 7/16: Blast furnaces (lifts associated with blast furnaces B66B 9/06) Tuyères

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12071346 Fine particle coal, and systems, apparatuses, and methods for collecting and using the sameOct 19, 20Aug 27, 24Somerset International, Inc.
11572597 P process of making pig iron in a blast furnace using pellets containing thermoplastic and cellulosic materialsJun 19, 18Feb 07, 23SUBCOAL INTERNATIONAL B.V.
11512899 Blast furnace apparatus and operation method for blast furnaceMar 25, 19Nov 29, 22JFE Steel Corporation
11155890 Tuyere for a basic oxygen furnaceJul 17, 19Oct 26, 21Air Products and Chemicals, Inc.
11021764 Extraction device for a tuyere partAug 02, 18Jun 01, 21Paul Wurth SA
10870899 Fluid assisted particle injectorNov 03, 17Dec 22, 20Berry Metal Company
10807870 Fine particle coal, and systems, apparatuses, and methods for collecting and using the sameJul 22, 19Oct 20, 20Somerset Coal International, Inc.
10604815 Direct reduction process and shaft furnace utilizing an extended flow diverter coneNov 03, 17Mar 31, 20Midrex Technologies Inc.
10487370 Method for operating blast furnaceFeb 22, 16Nov 26, 19JFE Steel Corporation
10472689 Method for blowing substitute reducing agents into a blast furnaceJul 03, 15Nov 12, 19KÜTTNER HOLDING GMBH & CO. KG
10400292 Method for operating blast furnaceFeb 22, 16Sep 03, 19JFE Steel Corporation
10358351 Fine particle coal, and systems, apparatuses, and methods for collecting and using the sameMay 28, 15Jul 23, 19Somerset Coal International, Inc.
10151006 Method of detecting abnormality at blast furnace and method of operating blast furnaceJun 13, 14Dec 11, 18JFE Steel Corporation
10106863 Method for operation of blast furnaceJan 06, 15Oct 23, 18Nippon Steel & Sumitomo Metal Corporation; JFE Steel Corporation; Kobe Steel Ltd.; Nisshin Steel Co. Ltd.; NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.;
10018419 Solids injection lanceMay 02, 14Jul 10, 18Tata Steel Limited
9982946 Optical monitoring system for observing internal conditions in the tuyere zone of a blast furnaceFeb 09, 16May 29, 18Paul Wurth SA
9951992 Metallurgical furnaceDec 22, 14Apr 24, 18Tecnored Desenvolvimento Tecnologico S.A.
9945001 Blast furnace operation method and lanceMar 27, 14Apr 17, 18JFE Steel Corporation
9938593 Blast furnace operation methodMar 27, 14Apr 10, 18JFE Steel Corporation
9873923 Blast furnace operation methodMar 28, 14Jan 23, 18JFE STEEL CORPORATION

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0101,538 Gas Injection Control System For Blast Furnace, And Control MethodDec 13, 22Mar 27, 25Not available
2025/0101,539 BLAST FURNACE BLOWER DEVICESep 20, 24Mar 27, 25Not available
2025/0027,176 Injection Regulation and Control Device and Method for Blast Furnace Low-Carbon SmeltingDec 04, 22Jan 23, 25Not available
2023/0366,050 Device to inject a reducing gas into a shaft furnaceSep 15, 20Nov 16, 23Not available
2023/0366,049 Device to inject a reducing gas into a shaft furnaceSep 15, 20Nov 16, 23Not available
2023/0366,047 Blast furnace for ironmaking productionSep 15, 20Nov 16, 23Not available
2022/0403,477 BLAST FURNACE OPERATION METHODNov 27, 20Dec 22, 22501 Nippon Steel Corporation; JFE Steel Corporation; Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.); NIPPON STEEL ENGINEERING CO., LTD;
2022/0380,860 METHOD OF OPERATING BLAST FURNACE AND BLAST FURNACE ANCILLARY FACILITYNov 11, 20Dec 01, 22JFE Steel Corporation
2022/0298,591 TUYERE STOCK, METHOD OF FABRICATING THE SAME, AND AIR BLAST SYSTEM FOR MELTING FURNACEJun 09, 22Sep 22, 22EXCELLO CO., LTD.
2022/0177,985 METHOD FOR OPERATION OF BLAST FURNACEMar 26, 20Jun 09, 22Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

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