F27D 2003/167
The fluid being a neutral gas
Official title: {the fluid being a neutral gas}
F27D2003/167 (The fluid being a neutral gas) appears on 30 US grants and 35 published applications in this corpus.
Search patents in F27D- Granted patents
- 30
- Published applications
- 35
- Assignees
- 27
- Inventors
- 75
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 4 |
| 2017 | 1 | 4 |
| 2018 | 3 | 2 |
| 2019 | 2 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 4 |
| 2022 | 1 | 2 |
| 2023 | 3 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for the pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials20 Jan 2026US 12,529,125 B2SMS group GmbH
- Refining vessel for high-temperature melt7 May 2024US 11,976,340 B2Jfe Steel Corporation
- Gas injection nozzle refractory and gas injection nozzle21 Nov 2023US 11,821,691 B2Jfe Steel Corporation
- Gas injection system, furnace provided with such a system and use thereof30 May 2023US 11,662,145 B2Soudobeam SA
- Furnace assembly for a metal-making process3 Jan 2023US 11,543,182 B2ABB Schweiz AG
- Method of smelting steel and method of producing steel30 Apr 2026US 2026/0117332 A1Jfe Steel Corporation
- Energy efficient salt-free recovery of metal from dross23 Oct 2025US 2025/0327150 A1Pyrogenesis Canada Inc.
- Tundish flux feeding apparatus and method21 Aug 2025US 2025/0262661 A1HarbisonWalker International Holdings, Inc.
- Method for the pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials4 Jan 2024US 2024/0002975 A1SMS group GmbH
- Energy efficient salt-free recovery of metal from dross9 Nov 2023US 2023/0357888 A1Pyrogenesis Canada Inc.
Most cited
By later US patents
- Dispersing gas into molten metal131US 4,954,167 A1990
- Method and system for injection of a vaporizable material into a molten bath112US 5,679,132 AMolten Metal Technology, Inc. · 1997
- Inline degassing apparatus111US 6,887,424 B2Pyrotek Japan Limited · 2005
- System and method for degassing molten metal88US 8,366,993 B22013
- System and method for degassing molten metal79US 8,753,563 B22014