F23L 15/045
Using intermediate heat-transfer fluids
Official title: {using intermediate heat-transfer fluids}
F23L15/045 (Using intermediate heat-transfer fluids) appears on 41 US grants and 33 published applications in this corpus.
Search patents in F23L- Granted patents
- 41
- Published applications
- 33
- Assignees
- 41
- Inventors
- 113
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 0 | 3 |
| 2016 | 0 | 3 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 4 | 5 |
| 2020 | 2 | 0 |
| 2021 | 1 | 1 |
| 2022 | 3 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Zero-power-consumption self-adaptive distributed waste heat recovery and utilization system for ethylene device8 Sep 2026US 12,729,854 B2Beijing Aerospace Energy Conservation and Environmental Protection Technology Co., Ltd
- Furnace operation method11 Aug 2026US 12,703,652 B2American Air Liquide, Inc.
- Flame control in an oxyfuel combustion process24 Dec 2024US 12,173,655 B28 Rivers Capital, LLC
- 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
- Furnace with integrated heat recovery utilizing radiative recuperator for preheating combustion reactants using heat from flue gas22 Mar 2022US 11,280,491 B2American Air Liquide, Inc.
- Method for reducing nitrogen oxide emission and combustion system16 Jul 2026US 2026/0202054 A1China Petroleum & Chemical Corporation
- Hybrid electric and fired heater for olefin production12 Mar 2026US 2026/0071128 A1Lummus Technology Inc.
- Boiler with packaged heat exchanger for superheated steam control8 Jan 2026US 2026/0009533 A1DAELIM ROYAL EnP CO., LTD.
- Glass manufacturing apparatus and glass manufacturing method11 Sep 2025US 2025/0282665 A1AGC Inc.
- Boiler for iron fuel combustion arrangement28 Aug 2025US 2025/0271134 A1Renewable Iron Fuel Technology B.V.
Most cited
By later US patents
- Heat recovery apparatus and methods of use107US 6,250,916 B1American Air Liquide, Inc. · 2001
- Heat recovery apparatus and methods of use90US 6,071,116 AAmerican Air Liquide, Inc. · 2000
- Method and arrangement for condensing flue gases40US 4,799,941 AScandiaconsult AB · 1989
- Method of recovering waste heat from furnace flue gases using a granular heat exchange means33US 4,349,367 APPG Industries, Inc. · 1982
- Method and apparatus for preheating combustion air while cooling a hot process gas31US 4,044,820 AEcono-Therm Energy Systems Corporation · 1977