F23G 7/068
Using regenerative heat recovery means
Official title: {using regenerative heat recovery means}
F23G7/068 (Using regenerative heat recovery means) appears on 204 US grants and 117 published applications in this corpus.
Search patents in F23G- Granted patents
- 204
- Published applications
- 117
- Assignees
- 106
- Inventors
- 317
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 6 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 10 | 0 |
| 1998 | 9 | 0 |
| 1999 | 12 | 0 |
| 2000 | 7 | 0 |
| 2001 | 11 | 1 |
| 2002 | 1 | 4 |
| 2003 | 7 | 6 |
| 2004 | 3 | 5 |
| 2005 | 4 | 6 |
| 2006 | 3 | 5 |
| 2007 | 0 | 6 |
| 2008 | 4 | 2 |
| 2009 | 1 | 2 |
| 2010 | 5 | 3 |
| 2011 | 0 | 4 |
| 2012 | 1 | 3 |
| 2013 | 2 | 7 |
| 2014 | 1 | 4 |
| 2015 | 3 | 6 |
| 2016 | 6 | 6 |
| 2017 | 6 | 3 |
| 2018 | 2 | 2 |
| 2019 | 7 | 3 |
| 2020 | 1 | 2 |
| 2021 | 3 | 6 |
| 2022 | 3 | 9 |
| 2023 | 5 | 9 |
| 2024 | 6 | 5 |
| 2025 | 4 | 6 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Regenerative thermal oxidizer, system comprising a regenerative thermal oxidizer and method of operating a regenerative thermal oxidizer12 May 2026US 12,624,833 B2Koch Engineered Solutions, LLC
- Thermal regenerative fluid processing apparatus7 Apr 2026US 12,595,906 B2Rotoheater LLC
- Emission reduction system10 Mar 2026US 12,571,533 B2Etter Engineering Company, Inc.
- Regenerative post-combustion device, coating installation, and method for coating objects29 Jul 2025US 12,372,234 B2Eisenmann Environmental Technology GMBH
- Method for purifying a raw gas stream and purification device22 Apr 2025US 12,281,792 B2Dürr Systems AG
- Emission reduction system8 Oct 2026US 2026/0309327 A1Etter Engineering Company, Inc.
- Systems and methods for treatment of ventilation air methane5 Mar 2026US 2026/0061366 A1Archaea Energy Inc.
- Emission reduction system25 Sep 2025US 2025/0297734 A1Etter Engineering Company, Inc.
- Indexing Valve For Regenerative Thermal Oxidizer5 Jun 2025US 2025/0180128 A1Process Combustion Corporation
- Regenerative thermal oxidizer gas flow control system and related methods22 May 2025US 2025/0164011 A1Nestec S.A.
Most cited
By later US patents
- Regenerative thermal oxidizer62US 5,376,340 AABB Air Preheater, Inc. · 1994
- Process for combustion or decomposition of pollutants and equipment therefor60US 4,741,690 A1988
- Double valve anti-leak system for thermal regeneration incinerators55US 4,252,070 ARegenerative Environmental Equipment Co., Inc. · 1981
- Combustion apparatus with auxiliary burning unit for liquid fluids45US 4,802,423 ARegenerative Environmental Equipment Co., Inc. · 1989
- Integrated regenerative catalytic oxidation/selective catalytic reduction abatement system45US 5,589,142 ASalem Englehard · 1996