F23D 2900/14003
With more than one nozzle
Official title: with more than one nozzle
F23D2900/14003 (With more than one nozzle) appears on 55 US grants and 84 published applications in this corpus.
Search patents in F23D- Granted patents
- 55
- Published applications
- 84
- Assignees
- 63
- Inventors
- 221
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 2 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 2 |
| 2017 | 2 | 2 |
| 2018 | 1 | 3 |
| 2019 | 2 | 3 |
| 2020 | 4 | 14 |
| 2021 | 3 | 9 |
| 2022 | 12 | 12 |
| 2023 | 7 | 6 |
| 2024 | 7 | 8 |
| 2025 | 7 | 6 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Free-jet burner and method for low CO2, NOx, and CO emissions21 Oct 2025US 12,449,122 B2Zeeco, Inc.
- Outdoor invisible-ignition burner21 Oct 2025US 12,449,123 B2Guangzhou RedSun Gas Appliances Co., Ltd
- Burner assembly for gaseous fuels27 Aug 2026US 2026/0251296 A1Clearsign Technologies Corporation
- Propane grill with convection system11 Jun 2026US 2026/0157568 A1
- Burner body with variable gas outlet area30 Apr 2026US 2026/0117969 A1Ariston S.P.A.
- Array type flue gas circulation gas burner2 Apr 2026US 2026/0092702 A1Fangkuai Boiler Co., Ltd.
- Burner, furnace and method of generating a flame18 Dec 2025US 2025/0383079 A1Messer Industries USA, Inc.
Most cited
By later US patents
- System and method for building ornamental flame displays13US 10,571,117 B1Warming Trends, LLC · 2020
- Low NoX burner apparatus13US 6,394,792 B1Zeeco, Inc. · 2002
- Variable flame burner configuration12US 5,769,624 ALuminis Pty. Ltd. · 1998
- Burner12US 8,850,820 B2Siemens Aktiengesellschaft · 2014
- Regenerative thermal oxidizer incorporating a venturi style burner10US 6,450,800 B1Megtec Systems, Inc. · 2002