F23N 2233/10
Forcing air through heat exchangers
Official title: forcing air through heat exchangers
F23N2233/10 (Forcing air through heat exchangers) appears on 72 US grants and 22 published applications in this corpus.
Search patents in F23N- Granted patents
- 72
- Published applications
- 22
- Assignees
- 34
- Inventors
- 102
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 2 | 1 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 2 | 2 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 2 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Systems and methods for operating a furnace18 Mar 2025US 12,253,284 B2Trane International Inc.
- RPM control method of blower for gas furnace13 Feb 2024US 11,898,799 B2LG Electronics Inc.
- Push/pull furnace and methods related thereto10 Oct 2023US 11,781,748 B2Trane International Inc.
- Systems and methods for operating a furnace11 Apr 2023US 11,624,529 B2Trane International Inc.
- Control method of gas furnace18 Oct 2022US 11,473,812 B2LG Electronics Inc.
- Push/Pull Furnace and Methods Related Thereto21 Dec 2023US 2023/0408083 A1Trane International Inc.
- Systems and methods for operating a furnace6 Jul 2023US 2023/0213240 A1Trane International Inc.
- Push/Pull Furnace and Methods Related Thereto13 Jan 2022US 2022/0010958 A1Trane International Inc.
- Systems and Methods for Operating a Furnace13 Jan 2022US 2022/0011018 A1Trane International Inc.
- Control method of gas furnace2 Jul 2020US 2020/0208879 A1LG Electronics Inc.
Most cited
By later US patents
- Integrated furnace control and control self test122US 4,872,828 AHamilton Standard Controls, Inc. · 1989
- Furnace fan control96US 4,684,060 AHoneywell Inc. · 1987
- Combustion air regulating apparatus for use with induced draft furnaces90US 5,993,195 ACarrier Corporation · 1999
- Method for providing variable output gas-fired furnace with a constant temperature rise and efficiency88US 4,688,547 ACarrier Corporation · 1987
- Modulating gas valve furnace control method82US 5,860,411 ACarrier Corporation · 1999