F23D 1/02
Vortex burners
Official title: Vortex burners, e.g. for cyclone-type combustion apparatus
F23D1/02 (Vortex burners) appears on 128 US grants and 72 published applications in this corpus.
Search patents in F23D- Granted patents
- 128
- Published applications
- 72
- Assignees
- 87
- Inventors
- 371
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 10 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 2 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 3 | 2 |
| 2006 | 0 | 3 |
| 2007 | 1 | 5 |
| 2008 | 1 | 5 |
| 2009 | 1 | 3 |
| 2010 | 0 | 3 |
| 2011 | 2 | 3 |
| 2012 | 3 | 4 |
| 2013 | 1 | 2 |
| 2014 | 5 | 5 |
| 2015 | 2 | 6 |
| 2016 | 3 | 0 |
| 2017 | 3 | 2 |
| 2018 | 3 | 4 |
| 2019 | 0 | 1 |
| 2020 | 4 | 1 |
| 2021 | 1 | 2 |
| 2022 | 5 | 6 |
| 2023 | 1 | 3 |
| 2024 | 1 | 2 |
| 2025 | 3 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Two-channel burner and method of use therefor, and multi-channel single-cone burner and method of use therefor21 Apr 2026US 12,607,347 B2Beijing Tiandi Rongchuang Technology Co., Ltd
- Distribution ring for fuel in a burner, burner having such a distribution ring and drying drum having such a burner31 Mar 2026US 12,590,697 B2Benninghoven Zweigniederlassung Der Wirtgen Mineral Technologies GmbH
- Multi-autoclave lateral conversion module30 Dec 2025US 12,508,564 B2Bright Sand, Inc.
- Venturi device with forced induction systems and methods1 Jul 2025US 12,343,691 B2Zero Nox, Inc.
- Iron fuel combustion arrangement11 Jun 2026US 2026/0160416 A1Renewable Iron Fuel Technology B.V.
- Ignition, burning stabilization, and energy conservation integrated warm nuclear fusion and pulverized coal combined burning system4 Jun 2026US 2026/0153234 A1Leading Guochuang (Beijing) Technology Group Co., LTD
- Flue Gas Analysis Device11 Dec 2025US 2025/0377345 A1Seitron S.P.A.
- Powder fuel burner18 Sep 2025US 2025/0290628 A1Kawasaki Jukogyo Kabushiki Kaisha
- Powder fuel burner28 Aug 2025US 2025/0271135 A1Kawasaki Jukogyo Kabushiki Kaisha
Most cited
By later US patents
- Burner for combustion of powdered fuels61US 4,333,405 AL. & C. Steinmuller GmbH · 1982
- Low emissions process and burner53US 4,381,718 A1983
- Low NO.sub.x short flame burner46US 5,199,355 AThe Babcock & Wilcox Company · 1993
- Pulverized coal burner, pulverized coal boiler and method of burning pulverized coal43US 5,231,937 ABabcock-Hitachi Kabushiki Kaisha · 1993
- Low nox multi-fuel burner42US 4,748,919 AThe Babcock & Wilcox Company · 1988