F23L 13/02
Pivoted about a single axis but having not other movement
Official title: pivoted about a single axis but having not other movement (formed as linked slats each pivoted about an axis F23L13/08)
F23L13/02 (Pivoted about a single axis but having not other movement) appears on 123 US grants and 76 published applications in this corpus.
Search patents in F23L- Granted patents
- 123
- Published applications
- 76
- Assignees
- 73
- Inventors
- 186
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 3 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 3 |
| 2008 | 1 | 1 |
| 2009 | 1 | 4 |
| 2010 | 0 | 1 |
| 2011 | 0 | 5 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 6 |
| 2015 | 1 | 5 |
| 2016 | 4 | 4 |
| 2017 | 2 | 7 |
| 2018 | 4 | 6 |
| 2019 | 9 | 2 |
| 2020 | 4 | 6 |
| 2021 | 1 | 2 |
| 2022 | 6 | 4 |
| 2023 | 3 | 4 |
| 2024 | 5 | 3 |
| 2025 | 0 | 2 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Furnace30 Jun 2026US 12,669,266 B2Fire Chief Industries LLC
- Electronic control device and flow rate measurement system17 Mar 2026US 12,578,091 B2Hitachi Astemo, Ltd.
- Non-return valve for a flow channel through which a flow of air flows24 Feb 2026US 12,560,242 B2Skoberne GmbH
- Variable orifice restriction device13 Jan 2026US 12,523,374 B2The Marley Company
- Variable vane overfire air nozzles, system, and strategy17 Sep 2024US 12,092,326 B2
- Variable orifice restriction device30 Apr 2026US 2026/0117972 A1The Marley Company
- Flexible anti-backflow damper for a fireplace system19 Feb 2026US 2026/0049715 A1HNI Technologies Inc.
- Premixing apparatus12 Jun 2025US 2025/0189124 A1Rinnai Corporation
- Combustion device30 Jan 2025US 2025/0035303 A1Lepaier Global Co., Ltd.
- Biomass Fuel Burning Furnace12 Dec 2024US 2024/0410569 A1Zhongshan Junwei Home Appliances Co., Ltd.
Most cited
By later US patents
- Automatic boiler damper31US 4,046,318 A1977
- Apparatus and method for controlling a damper in a gas-fired appliance29US 8,113,823 B2Field Controls, LLC · 2012
- Thermally activated, automatic damper and damper operator27US 4,372,485 A1983
- Combination damper and chimney cap apparatus25US 5,609,522 A1997
- Wireless fireplace damper control device23US 7,451,759 B2Flue Sentinel, Inc. · 2008