F24C 3/004
Of the closed type
Official title: {of the closed type}
F24C3/004 (Of the closed type) appears on 56 US grants and 49 published applications in this corpus.
Search patents in F24C- Granted patents
- 56
- Published applications
- 49
- Assignees
- 40
- Inventors
- 120
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 5 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 3 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 2 |
| 2016 | 2 | 3 |
| 2017 | 0 | 3 |
| 2018 | 3 | 5 |
| 2019 | 5 | 4 |
| 2020 | 4 | 2 |
| 2021 | 5 | 2 |
| 2022 | 3 | 6 |
| 2023 | 3 | 0 |
| 2024 | 0 | 0 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vent-free fireplace heat removal system and accessories adapted for removal of excess heat from a room wherein the vent-free fireplace is located25 Nov 2025US 12,480,659 B2Empire Comfort Systems, Inc.
- Cooking device18 Mar 2025US 12,253,265 B2LG Electronics Inc.
- Secondary venting arrangement for gas oven cooking appliance24 Oct 2023US 11,796,182 B2Midea Group Co., Ltd.
- Gas oven with stations under parallel or synchronous control3 Oct 2023US 11,774,104 B2Jiangsu Jiuhui Technology Co., Ltd.
- Modular linear fireplace system, assemblies and methods30 May 2023US 11,662,121 B2Travis Industries, Inc.
- Exhaust device and gas furnace7 May 2026US 2026/0126050 A1Gd Midea Heating & Ventilating Equipment Co., Ltd.
- Cooking device5 Jun 2025US 2025/0180215 A1LG Electronics Inc.
- Secondary venting arrangement for gas oven cooking appliance29 Dec 2022US 2022/0412570 A1Midea Group Co., Ltd.
- Vent-free fireplace heat removal system and accessories adapted for removal of excess heat from a room wherein the vent-free fireplace is located8 Dec 2022US 2022/0390116 A1Empire Comfort Systems, Inc.
- Firebox assembly for a gas fireplace and gas heating appliance14 Jul 2022US 2022/0221153 A1Flexchanger Technologies Inc.
Most cited
By later US patents
- Gas log fireplace with high heat output60US 5,092,313 AVermont Castings, Inc. · 1992
- Gas operated fireplace assembly35US 5,647,342 ALennox Industries Inc. · 1997
- Cooking device32US 10,330,323 B2LG Electronics Inc. · 2019
- Modular gas fireplace insert29US 6,029,655 AHussong Manufacturing Co., Inc. · 2000
- Convertible dual direct-vented fireplace28US 5,647,340 AHeat-n-Glow · 1997