F23L 17/005
Inducing draught: using fans
Official title: {using fans}
F23L17/005 (Inducing draught: using fans) appears on 190 US grants and 155 published applications in this corpus.
Search patents in F23L- Granted patents
- 190
- Published applications
- 155
- Assignees
- 79
- Inventors
- 342
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 1 |
| 2002 | 4 | 5 |
| 2003 | 7 | 2 |
| 2004 | 4 | 4 |
| 2005 | 2 | 7 |
| 2006 | 4 | 4 |
| 2007 | 1 | 3 |
| 2008 | 2 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 1 | 3 |
| 2012 | 1 | 12 |
| 2013 | 4 | 12 |
| 2014 | 3 | 4 |
| 2015 | 1 | 10 |
| 2016 | 10 | 12 |
| 2017 | 10 | 10 |
| 2018 | 10 | 16 |
| 2019 | 9 | 8 |
| 2020 | 7 | 10 |
| 2021 | 5 | 6 |
| 2022 | 11 | 8 |
| 2023 | 8 | 5 |
| 2024 | 9 | 3 |
| 2025 | 3 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Push/pull furnace and methods related thereto14 Jul 2026US 12,680,693 B2Trane International Inc.
- Nozzle assembly for exhaust fan unit of HVAC system19 May 2026US 12,631,353 B2Air Distribution Technologies IP, LLC
- High-efficiency heating apparatus17 Feb 2026US 12,551,057 B1Hyper Fryer, LLC
- Heating device with improved efficiency2 Sep 2025US 12,405,010 B2Suter Entfeuchtungstechnik AG
- Method and apparatus for improved efficiency and flue gas scrubbing in a fired heater using a condensing convection section17 Jun 2025US 12,330,115 B2BD Energy Systems, LLC
- Telescopic Pulse Ash Blower Capable of Blowing Ash at Multiple Angles and Ash Blowing Method Thereof18 Jun 2026US 2026/0168668 A1Harbin Xiandai Intelligent Equipment Manufacturing Co., Ltd.
- Catalytic burner and hydrogen boiler for water heating10 Apr 2025US 2025/0116398 A1Giacomini S.p. A.
- Nozzle assembly for exhaust fan unit of hvac system27 Mar 2025US 2025/0102167 A1Air Distribution Technologies IP, LLC
- Systems and Methods for Detecting Pressure in a Gas Furnace27 Feb 2025US 2025/0067474 A1Rheem Manufacturing Company
- Control system for exhaust gas fan system26 Dec 2024US 2024/0426479 A1Strobic Air Corporation
Most cited
By later US patents
- Variable-volume exhaust system169US 10,029,289 B2Greenheck Fan Corporation · 2018
- Air pollution control apparatus and air pollution control method127US 8,202,354 B2Mitsubishi Heavy Industries, Ltd. · 2012
- Ventilator57US 4,759,272 A1988
- Method and apparatus for adjusting airflow in draft inducer57US 6,227,191 B1Carrier Corporation · 2001
- Dynamic condensate evacuator for high efficiency gas furnaces44US 5,620,302 AFasco Industries, Inc. · 1997