F23G 7/04
Incinerators or other apparatus for consuming industrial waste: of waste liquors
Official title: of waste liquors, e.g. sulfite liquors
F23G7/04 (Incinerators or other apparatus for consuming industrial waste: of waste liquors) appears on 114 US grants and 75 published applications in this corpus.
Search patents in F23G- Granted patents
- 114
- Published applications
- 75
- Assignees
- 69
- Inventors
- 176
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 2 | 6 |
| 2006 | 1 | 2 |
| 2007 | 2 | 6 |
| 2008 | 1 | 3 |
| 2009 | 5 | 6 |
| 2010 | 4 | 5 |
| 2011 | 3 | 3 |
| 2012 | 3 | 4 |
| 2013 | 5 | 2 |
| 2014 | 5 | 2 |
| 2015 | 2 | 2 |
| 2016 | 3 | 3 |
| 2017 | 3 | 2 |
| 2018 | 1 | 2 |
| 2019 | 2 | 5 |
| 2020 | 2 | 1 |
| 2021 | 3 | 3 |
| 2022 | 3 | 2 |
| 2023 | 1 | 3 |
| 2024 | 4 | 4 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cooling shield for a liquor injection pipe of a liquor gun, liquor gun system comprising the cooling shield, and method for cooling a liquor injection pipe in a liquor gun system15 Sep 2026US 12,736,217 B2Valmet Corporation
- Automatic monitoring of smelt flow exiting a recovery boiler14 Jan 2025US 12,195,918 B2Andritz Inc.
- Method for controlling a chemical recovery boiler and a chemical recovery boiler1 Oct 2024US 12,104,319 B2Valmet Automation Oy
- Method for obtaining information on quality of combustion of a liquor in a chemical recovery boiler and a method for controlling a chemical recovery boiler16 Jul 2024US 12,039,239 B2Valmet Automation Oy
- Combustion of streams derived from hot water extraction of wood material4 Jun 2024US 12,000,087 B2Cascades Canada Ulc
- Gas product manufacturing using vapor and liquid components of a feedstock18 Jun 2026US 2026/0167881 A1InEnTec Inc.
- Zero methane oil and gas production facility design28 Aug 2025US 2025/0270450 A1Synergy Thermogen, Inc.
- Method and Apparatus for Improved Operation of Chemical Recovery Boilers5 Dec 2024US 2024/0401800 A1Sullivan, Higgins, and Brion Power Plant Engineering, LLC
- Combustible waste treatment method11 Jul 2024US 2024/0230083 A9Taiheiyo Cement Corporation
- Combustible waste treatment method25 Apr 2024US 2024/0133549 A1Taiheiyo Cement Corporation
Most cited
By later US patents
- Equipment and process for medical waste disintegration and reclamation55US 5,271,341 A1993
- Method and apparatus for safely controlling explosions in black liquor recovery boilers46US 4,462,319 ADetector Electronics Corporation · 1984
- Method of operating a spent pulping liquor combustion apparatus43US 4,522,685 AInternational Paper Company · 1985
- Hazardous waste reclamation process38US 5,000,101 A1991
- Process for increasing the effectiveness of slag and/or corrosion control chemicals for combustion units34US 5,894,806 AFuel Tech, Inc. · 1999