F24F 2221/186
Combined with a fireplace
Official title: combined with a fireplace
F24F2221/186 (Combined with a fireplace) appears on 22 US grants and 9 published applications in this corpus.
Search patents in F24F- Granted patents
- 22
- Published applications
- 9
- Assignees
- 11
- Inventors
- 36
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 2 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Humidifying device28 Apr 2026US 12,613,043 B2
- Protective barrier for safety glazing6 May 2025US 12,292,205 B2RO Technologies, LLC
- Method and apparatus to provide ventilation for a building7 Jul 2015US 9,074,789 B2
- Heat exchange system21 Jun 2005US 6,908,039 B2HNI Technologies Inc.
- Fireplace make-up air heat exchange system4 May 2004US 6,729,551 B2HON Technology Inc.
- Humidifying device8 May 2025US 2025/0146683 A1
- Protective barrier for safety glazing21 Nov 2024US 2024/0383317 A1RO Technologies, LLC
- Heating and cooling appliance16 Sep 2021US 2021/0285661 A1Wolf Steel Ltd.
- Method and Apparatus to Provide Ventilation for a Building4 Sep 2014US 2014/0248832 A1
- Apparatus for Improved Efficiency of an Air Conversion Device24 Nov 2011US 2011/0283986 A1
Most cited
By later US patents
- Laminated non-combustible board for forming ductwork and headers38US 5,339,577 A1994
- Method and apparatus for controlling supplemental heat in a heat pump system32US 6,149,066 ACarrier Corporation · 2000
- Composite duct system30US 5,944,060 ABoeing North American, Inc. · 1999
- Seal system for duct network26US 5,653,482 A1997
- Integrated gas fireplace and air conditioner system25US 5,775,408 AHeat-N-Glo Fireplace Products, Inc. · 1998