F27B 3/26
Arrangements of heat-exchange apparatus
F27B3/26 (Arrangements of heat-exchange apparatus) appears on 59 US grants and 40 published applications in this corpus.
Search patents in F27B- Granted patents
- 59
- Published applications
- 40
- Assignees
- 46
- Inventors
- 131
- Latest grant
- 31 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 7 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 3 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 5 |
| 2019 | 2 | 4 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 4 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 3 |
| 2025 | 0 | 2 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cassette design drop out box, combustion chamber, duct and electric arc furnace upper shell system31 Dec 2024US 12,181,221 B2Amerifab, Inc.
- Flue gas recycle method for thermochemical regeneration3 Jan 2023US 11,543,183 B2Praxair Technology, Inc.
- Thermal storage unit12 Jul 2022US 11,384,984 B2Saint-Gobain Centre De Recherches Et D ' Etudes Europeen
- Method for operating a batch furnace comprising the preheating of a fluid upstream of the furnace5 Jul 2022US 11,378,338 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cassette design drop out box, combustion chamber, duct and electric arc furnace upper shell system21 Jun 2022US 11,365,936 B2Amerifab, Inc.
- Furnace vessel for electric arc, metallurgical or refining furnaces and system thereof28 May 2026US 2026/0146795 A1
- Waste Heat Recovery and Utilization System and method26 Mar 2026US 2026/0085887 A1Zhengzhou Non-Ferrous Metals Research Institute Co. Ltd of Chalco
- Method for heating a furnace29 Jan 2026US 2026/0029198 A1
- Furnaces for melting particulate materials1 Jan 2026US 2026/0002735 A1L' Air Liquide, Societe Anonyme pour I' Etude et I'Exploitation des Procedes Georges Claude
- Aluminium smelting method & apparatus2 Oct 2025US 2025/0305172 A1Enpot Holdings Limited
Most cited
By later US patents
- Method and system for injection of a vaporizable material into a molten bath112US 5,679,132 AMolten Metal Technology, Inc. · 1997
- Thermophotovoltaic generator in high temperature industrial process77US 6,538,193 B1JX Crystals Inc. · 2003
- Heat transfer enhancements for increasing fuel efficiency in high temperature furnaces73US 5,993,203 AGas Research Institute · 1999
- Use of high carbon coal ash72US 6,755,905 B2Lafarge Canada Inc. · 2004
- Regenerative burner42US 4,923,391 AAmerican Combustion, Inc. · 1990