F23L 17/08
With coaxial cones or louvres
Official title: with coaxial cones or louvres
F23L17/08 (With coaxial cones or louvres) appears on 12 US grants and 6 published applications in this corpus.
Search patents in F23L- Granted patents
- 12
- Published applications
- 6
- Assignees
- 9
- Inventors
- 17
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exhaust plume control structure and power generating plant including same24 Feb 2026US 12,560,322 B2General Electric Company
- Intake device for a chimney termination6 May 2025US 12,292,192 B2Rlh Industries, Inc.
- Apparatus and method for preventing crosswind interference in induction nozzles12 Jan 2016US 9,233,386 B2Dyna-Tech Sales Corporation
- Chimney cap apparatus and method20 Feb 2007US 7,179,164 B2European Copper, LLC
- Acoustic wind band13 Aug 2002US 6,431,974 B1Met Pro Corporation
- Intake device for a chimney termination20 Nov 2025US 2025/0354688 A1Rlh Industries, Inc.
- Exhaust plume control structure and power generating plant including same3 Aug 2023US 2023/0243500 A1General Electric Company
- Intake device for a chimney termination25 Aug 2022US 2022/0268441 A1Rlh Industries, Inc.
- Exhaust plume control structure and power generating plant including same26 Aug 2021US 2021/0262363 A1General Electric Company
- Apparatus and Method for Preventing Crosswind Interference in Induction Nozzles1 Aug 2013US 2013/0193235 A1Dyna-Tech Sales Corporation
Most cited
By later US patents
- Plume elimination mechanism63US 4,184,417 AFord Motor Company · 1980
- Direct vent fireplace26US 5,715,808 ATemco Fireplace Products, Inc. · 1998
- Acoustic wind band22US 6,431,974 B1Met Pro Corporation · 2002
- Stack draft stabilizing device13US 4,397,225 APerform, Inc. · 1983
- Flue terminal gas extractor9US 4,603,619 A1986