F23D 2203/101
Characterised by surface shape
Official title: characterised by surface shape
F23D2203/101 (Characterised by surface shape) appears on 193 US grants and 206 published applications in this corpus.
Search patents in F23D- Granted patents
- 193
- Published applications
- 206
- Assignees
- 135
- Inventors
- 463
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 0 |
| 2002 | 7 | 5 |
| 2003 | 2 | 2 |
| 2004 | 6 | 6 |
| 2005 | 2 | 5 |
| 2006 | 3 | 8 |
| 2007 | 1 | 4 |
| 2008 | 0 | 6 |
| 2009 | 2 | 7 |
| 2010 | 0 | 18 |
| 2011 | 2 | 6 |
| 2012 | 5 | 5 |
| 2013 | 4 | 7 |
| 2014 | 6 | 10 |
| 2015 | 8 | 14 |
| 2016 | 5 | 16 |
| 2017 | 11 | 6 |
| 2018 | 17 | 13 |
| 2019 | 8 | 13 |
| 2020 | 10 | 14 |
| 2021 | 6 | 8 |
| 2022 | 14 | 11 |
| 2023 | 4 | 6 |
| 2024 | 2 | 7 |
| 2025 | 10 | 5 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fuel-air mixing and flame stabilization device for a low emission burner with internal flue gas recirculation26 May 2026US 12,638,174 B2Honeywell International Inc.
- Burner and method of operation19 May 2026US 12,631,326 B2Air Products and Chemicals, Inc.
- Burner liner24 Mar 2026US 12,584,626 B2Edwards Limited
- Scrubber burner10 Feb 2026US 12,546,470 B2Kabushiki Kaisha CSK
- Gas burner and heating appliance2 Dec 2025US 12,486,977 B2Bekaert Combustion Technology B.V.
- Burner and method of operation6 Aug 2026US 2026/0227063 A1Air Products and Chemicals, Inc.
- Burner body with variable gas outlet area30 Apr 2026US 2026/0117969 A1Ariston S.P.A.
- Combustion membrane for a gas burner12 Feb 2026US 2026/0043542 A1
- Systems and Methods for Gas Combustion15 Jan 2026US 2026/0016158 A1Rheem Manufacturing Company
- Combustion membrane for a gas burner28 Aug 2025US 2025/0271136 A1Beckett Thermal Solutions
Most cited
By later US patents
- Atmospheric gas burner assembly78US 5,240,411 AMor-Flo Industries, Inc. · 1993
- Gas micro burner64US 7,488,171 B2R. J. Reynolds Tobacco Company · 2009
- Gas water heater/boiler62US 4,793,800 ALochinvar Water Heater Corporation · 1988
- Gas micro burner61US 6,827,573 B2Brown & Williamson Tobacco Corporation · 2004
- Variable flame retention device utilizing an interwoven flexible wire metal gauze54US 5,989,015 AGaz De France (G. D. F.) Service National · 1999