F23D 14/14
Using screens or perforated plates
Official title: using screens or perforated plates
F23D14/14 (Using screens or perforated plates) appears on 249 US grants and 288 published applications in this corpus.
Search patents in F23D- Granted patents
- 249
- Published applications
- 288
- Assignees
- 167
- Inventors
- 510
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 3 |
| 2003 | 8 | 7 |
| 2004 | 3 | 8 |
| 2005 | 3 | 3 |
| 2006 | 5 | 12 |
| 2007 | 1 | 6 |
| 2008 | 0 | 6 |
| 2009 | 2 | 2 |
| 2010 | 8 | 9 |
| 2011 | 3 | 7 |
| 2012 | 5 | 6 |
| 2013 | 2 | 8 |
| 2014 | 2 | 8 |
| 2015 | 5 | 19 |
| 2016 | 9 | 23 |
| 2017 | 12 | 19 |
| 2018 | 18 | 21 |
| 2019 | 12 | 25 |
| 2020 | 22 | 26 |
| 2021 | 10 | 17 |
| 2022 | 17 | 10 |
| 2023 | 6 | 10 |
| 2024 | 9 | 17 |
| 2025 | 6 | 9 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Combustion heater and air conditioning system6 Oct 2026US 12,753,936 B2Daikin Industries, Ltd.
- Burner and water heater comprising same25 Aug 2026US 12,716,615 B2Kyungdong Navien Co., Ltd.
- Burner and water heating apparatus including same2 Jun 2026US 12,644,595 B2Kyungdong Navien Co., Ltd.
- Burner component and burner5 May 2026US 12,618,554 B2Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Infrared radiation emitter28 Apr 2026US 12,613,031 B2
- Fast-heating gas space heater10 Sep 2026US 2026/0266458 A1Junsky Appliances Limited
- Dual-burner firepit20 Aug 2026US 2026/0243434 A1
- Burner and water heating apparatus including the same2 Jul 2026US 2026/0185739 A1Kyungdong Navien Co., Ltd.
- Gas burner unit and heat-cooking apparatus provided with the same19 Feb 2026US 2026/0049714 A1Rinnai Corporation
- Burner head, fire grate, and gas device22 Jan 2026US 2026/0022834 A1Guangdong Midea Kitchen and Bath Appliances Mfg. Co., Ltd.
Most cited
By later US patents
- Infrared gas grill142US 4,321,857 A1982
- Forced-air gas burner79US 4,752,213 AGaz de France · 1988
- Atmospheric gas burner assembly78US 5,240,411 AMor-Flo Industries, Inc. · 1993
- Water heater with integral burner71US 5,355,841 ASABH (U.S.) Water Heater Group, Inc. · 1994
- Gas-fired radiant burner68US 5,326,257 AMaxon Corporation · 1994