F27B 3/22
Arrangements of air or gas supply devices
F27B3/22 (Arrangements of air or gas supply devices) appears on 213 US grants and 177 published applications in this corpus.
Search patents in F27B- Granted patents
- 213
- Published applications
- 177
- Assignees
- 131
- Inventors
- 463
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 13 | 0 |
| 1999 | 13 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 6 |
| 2002 | 14 | 4 |
| 2003 | 7 | 6 |
| 2004 | 10 | 5 |
| 2005 | 3 | 4 |
| 2006 | 0 | 7 |
| 2007 | 2 | 7 |
| 2008 | 2 | 7 |
| 2009 | 6 | 11 |
| 2010 | 9 | 5 |
| 2011 | 7 | 8 |
| 2012 | 5 | 6 |
| 2013 | 9 | 8 |
| 2014 | 1 | 5 |
| 2015 | 4 | 3 |
| 2016 | 6 | 10 |
| 2017 | 5 | 7 |
| 2018 | 6 | 5 |
| 2019 | 5 | 5 |
| 2020 | 5 | 4 |
| 2021 | 3 | 10 |
| 2022 | 3 | 6 |
| 2023 | 6 | 12 |
| 2024 | 7 | 10 |
| 2025 | 6 | 10 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for simultaneously injecting a fuel gas and an oxygen-rich gas into a unit14 Apr 2026US 12,601,022 B2SMS group GmbH
- Method of operating an electric arc furnace and steel mill24 Mar 2026US 12,584,182 B2Paul Wurth S. A.
- Blast lance for gas blowing, its use and method of production20 Jan 2026US 12,529,521 B2ImerTech SAS
- Load lock system and method for manufacturing metal alloys and metal powder30 Dec 2025US 12,510,297 B2Continuum Powders Corporation
- Thermal energy recovery systems for non-contact temperature detection of molten steel in steelmaking process23 Dec 2025US 12,503,736 B1Central South University
- Tuyere for a metallurgical furnace1 Oct 2026US 2026/0297694 A1Paul Wurth S. A.
- Molten steel manufacturing method and arc furnace20 Aug 2026US 2026/0242884 A1Nippon Steel Corporation
- Apparatus and method for production of high purity copper-based alloys21 May 2026US 2026/0139346 A1Doggone Investment Co. LLC
- Method of smelting steel and method of producing steel30 Apr 2026US 2026/0117332 A1Jfe Steel Corporation
- Method For Manufacturing Metal Alloys And Metal Powders26 Mar 2026US 2026/0085886 A1Continuum Powders Corporation
Most cited
By later US patents
- Method and apparatus for injection of a liquid waste into a molten bath124US 5,436,210 AMolten Metal Technology, Inc. · 1995
- Method and system for injection of a vaporizable material into a molten bath112US 5,679,132 AMolten Metal Technology, Inc. · 1997
- Method and apparatus for producing a product in a regenerator furnace from impure waste containing a non-gasifiable impurity110US 5,640,709 AMolten Metal Technology, Inc. · 1997
- Method and apparatus for producing a product in a regenerator furnace from impure waste containing a non-gasifiable impurity108US 5,640,706 AMolten Metal Technology, Inc. · 1997
- Apparatus for controlling the magnesium content of molten aluminum106US 5,029,821 AThe Carborundum Company · 1991