F27B 3/28
Arrangement of controlling, monitoring, alarm or the like devices
F27B3/28 (Arrangement of controlling, monitoring, alarm or the like devices) appears on 178 US grants and 223 published applications in this corpus.
Search patents in F27B- Granted patents
- 178
- Published applications
- 223
- Assignees
- 134
- Inventors
- 540
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 0 |
| 2002 | 6 | 4 |
| 2003 | 3 | 4 |
| 2004 | 1 | 1 |
| 2005 | 2 | 3 |
| 2006 | 0 | 6 |
| 2007 | 8 | 7 |
| 2008 | 4 | 9 |
| 2009 | 2 | 5 |
| 2010 | 6 | 4 |
| 2011 | 1 | 6 |
| 2012 | 1 | 5 |
| 2013 | 3 | 11 |
| 2014 | 4 | 9 |
| 2015 | 7 | 13 |
| 2016 | 4 | 12 |
| 2017 | 12 | 10 |
| 2018 | 6 | 8 |
| 2019 | 7 | 10 |
| 2020 | 8 | 13 |
| 2021 | 8 | 12 |
| 2022 | 13 | 13 |
| 2023 | 9 | 13 |
| 2024 | 12 | 16 |
| 2025 | 6 | 19 |
| 2026 | 5 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Converter device and electric power supply apparatus4 Aug 2026US 12,698,937 B2Danieli Automation S.P.A.
- Inspection apparatus for melting furnaces that can be used in the steel industry and method14 Jul 2026US 12,680,759 B2Danieli Automation S.P.A.
- Power supply device and power supply method for direct current electric arc furnace31 Mar 2026US 12,592,626 B2
- Method of producing molten iron using electric furnace including video device3 Mar 2026US 12,566,029 B2Jfe Steel Corporation
- Electrode translation control system for an electric arc furnace10 Feb 2026US 12,545,562 B1
- Apparatus for determining energized state of electric arc furnace, operation method for electric arc furnace, and electric arc furnace23 Jul 2026US 2026/0210632 A1Jfe Steel Corporation
- System to produce green steel through electric arc furnace with very low ghg emission intensity16 Jul 2026US 2026/0201487 A1Saarloha Advanced Materials Private Limited
- Wet hearth melting systems and methods for melting solid metals23 Apr 2026US 2026/0110492 A1The Schaefer Group
- Method For Manufacturing Metal Alloys And Metal Powders26 Mar 2026US 2026/0085886 A1Continuum Powders Corporation
- Apparatus and method for rotary furnace flame control to melt metal5 Mar 2026US 2026/0063366 A1Air Products and Chemicals, Inc.
Most cited
By later US patents
- Molten metal treatment furnace with level control and method112US 6,503,292 B2Alcoa Inc. · 2003
- Apparatus for controlling the magnesium content of molten aluminum106US 5,029,821 AThe Carborundum Company · 1991
- Molten metal dosing furnace with metal treatment and level control and method101US 6,500,228 B1Alcoa Inc. · 2002
- Process and apparatus for uniform combustion within a molten material86US 7,273,583 B2Gas Technology Institute · 2007
- Regenerative burner42US 4,923,391 AAmerican Combustion, Inc. · 1990