F27B 1/16
Arrangements of tuyeres
F27B1/16 (Arrangements of tuyeres) appears on 97 US grants and 91 published applications in this corpus.
Search patents in F27B- Granted patents
- 97
- Published applications
- 91
- Assignees
- 80
- Inventors
- 265
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 5 |
| 2008 | 2 | 6 |
| 2009 | 3 | 8 |
| 2010 | 2 | 4 |
| 2011 | 3 | 8 |
| 2012 | 11 | 4 |
| 2013 | 5 | 1 |
| 2014 | 4 | 1 |
| 2015 | 4 | 8 |
| 2016 | 2 | 6 |
| 2017 | 3 | 4 |
| 2018 | 3 | 5 |
| 2019 | 4 | 1 |
| 2020 | 3 | 4 |
| 2021 | 1 | 0 |
| 2022 | 3 | 1 |
| 2023 | 0 | 8 |
| 2024 | 0 | 5 |
| 2025 | 3 | 1 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reducing gas injection system23 Dec 2025US 12,504,233 B2Paul Wurth S. A.
- Blast furnace operation method5 Aug 2025US 12,378,615 B2Jfe Steel Corporation
- Tuyere stock, method of fabricating the same, and air blast system for melting furnace6 May 2025US 12,291,756 B2Excello Co., Ltd.
- Method for operating an iron- or steelmaking- plant5 Jul 2022US 11,377,700 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Reactor for a process of advanced combustion for burning biomass and waste5 Apr 2022US 11,293,635 B2
- Tuyere for a metallurgical furnace1 Oct 2026US 2026/0297694 A1Paul Wurth S. A.
- Method for operating a smelting furnace installation28 May 2026US 2026/0146300 A1Paul Wurth S. A.
- Method for operating a smelting furnace installation12 Feb 2026US 2026/0043099 A1Paul Wurth S. A.
- Tuyere sleeve for hydrogen-enriched carbonic oxide recycling oxygenate furnace and controlling method therefor29 Jan 2026US 2026/0029196 A1Xinjiang Bayi Iron & Steel Co., Ltd.
- System for Direct Reduction of Iron Ore to Sponge Iron23 Jan 2025US 2025/0027179 A1HYBRIT Development AB
Most cited
By later US patents
- Direct smelting plant43US 8,562,903 B2Technological Resources Pty. Limited · 2013
- Cupola burner14US 5,660,542 AMaumee Research & Engineering, Inc. · 1997
- Method at melting in a shaft furnace13US 3,958,919 ARockwool Aktiebolaget · 1976
- Arrangement for feeding12US 3,970,290 ANorrbottens Jarnverk AB · 1976
- Iron carbide production in shaft furnace11US 5,437,708 AMidrex International B.V. Rotterdam, Zurich Branch · 1995