F27D 2019/004
Fuel quantity
Official title: {Fuel quantity}
F27D2019/004 (Fuel quantity) appears on 42 US grants and 41 published applications in this corpus.
Search patents in F27D- Granted patents
- 42
- Published applications
- 41
- Assignees
- 38
- Inventors
- 148
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 1 |
| 2004 | 3 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 2 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 3 |
| 2016 | 3 | 1 |
| 2017 | 1 | 2 |
| 2018 | 2 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 6 |
| 2022 | 3 | 3 |
| 2023 | 1 | 3 |
| 2024 | 1 | 3 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus and method for supplying a gas to a furnace for the production of metal4 Nov 2025US 12,460,865 B2More S.R.L.
- Method and apparatus for improving furnace temperature uniformity1 Oct 2024US 12,104,788 B2Fives North American Combustion, Inc.
- Multi-burner rotary furnace melting system and method7 Mar 2023US 11,598,522 B2Air Products and Chemicals, Inc.
- Blast furnace apparatus and operation method for blast furnace29 Nov 2022US 11,512,899 B2Jfe Steel Corporation
- Microprocessor-based controller for pellet burners1 Nov 2022US 11,486,644 B1
- Shaft furnace for the smelting of copper and method therefor20 Aug 2026US 2026/0242893 A1SMS group GmbH
- Stack melting apparatus5 Jun 2025US 2025/0180292 A1
- Smelting unit for steel production with a tap weight of between 60 t and 350 t6 Feb 2025US 2025/0043370 A1SMS group GmbH
- Method and apparatus for improving furnace temperature uniformity19 Dec 2024US 2024/0418367 A1Fives North American Combustion, Inc.
- Method and apparatus for improving furnace temperature uniformity19 Dec 2024US 2024/0418368 A1Fives North American Combustion, Inc.
Most cited
By later US patents
- Oxy-fuel combustion system and uses therefor34US 6,436,337 B1Jupiter Oxygen Corporation · 2002
- Method for oxy-fueled combustion28US 6,596,220 B2Jupiter Oxygen Corporation · 2003
- Draft control method and apparatus for material processing plants19US 5,160,259 AHauck Manufacturing Company · 1992
- Furnace temperature control17US 4,257,767 AGeneral Electric Company · 1981
- Method for controlling temperature of multi-zone heating furnace15US 4,338,077 AHitachi, Ltd. · 1982