C10B 21/18
Recirculating the flue gases
C10B21/18 (Recirculating the flue gases) appears on 19 US grants and 19 published applications in this corpus.
Search patents in C10B- Granted patents
- 19
- Published applications
- 19
- Assignees
- 14
- Inventors
- 41
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 4 |
| 2021 | 3 | 1 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for manufacturing biochar and method thereof30 Jun 2026US 12,668,746 B2
- Exhaust flow modifier, duct intersection incorporating the same, and methods therefor10 Jun 2025US 12,325,828 B2Suncoke Technology and Development LLC
- Waste processing system7 Jan 2025US 12,187,962 B2Circular Resources (IP) Pte Limited
- Continuous solid organic matter pyrolysis polygeneration system and method for using same26 Nov 2024US 12,152,196 B2
- Organic material gasification system, and carbonization furnace and gasification furnace used therefor15 Aug 2023US 11,725,155 B2Street Design Corp.
- Continuous solid orgainic matter pyrolysis polygeneration system and method for using same23 May 2024US 2024/0166951 A1Engergy Research Institute of Shandong Academy of Sciences
- System for manufacturing biochar and method thereof8 Feb 2024US 2024/0043750 A1
- Organic material gasification system, and carbonization furnace and gasification furnace used therefor14 Jul 2022US 2022/0220398 A1Street Design Corp.
- Waste processing system12 May 2022US 2022/0145184 A1Circular Resources (IP) Pte Limited
- Exhaust flow modifier, duct intersection incorporating the same, and methods therefor25 Nov 2021US 2021/0363427 A1Suncoke Technology and Development LLC
Most cited
By later US patents
- Method of reducing NO.sub.x component of flue gas in heating coking ovens, and an arrangement of coking oven for carrying out the method99US 4,704,195 AKrupp-Koppers GmbH · 1987
- Method of reducing the nitrogen dioxide content of flue gas from a coke oven with dual heating flues by a combination of external flue gas feed back and internal flue gas recirculation95US 5,062,925 AKrupp-Koppers GmbH · 1991
- Method and device for keeping coke furnace chambers hot when a waste heat boiler is stopped71US 9,057,023 B2Thyssenkrupp Uhde GmbH · 2015
- Exhaust flow modifier, duct intersection incorporating the same, and methods therefor36US 10,975,309 B2Suncoke Technology and Development LLC · 2021
- Exhaust flow modifier, duct intersection incorporating the same, and methods therefor18US 9,476,547 B2Suncoke Technology and Development LLC · 2016