F22B 1/26
Steam boilers of submerged-flame type, i.e. the flame being surrounded by, or
Official title: Steam boilers of submerged-flame type, i.e. the flame being surrounded by, or impinging on, the water to be vaporised
F22B1/26 (Steam boilers of submerged-flame type, i.e. the flame being surrounded by, or) appears on 62 US grants and 37 published applications in this corpus.
Search patents in F22B- Granted patents
- 62
- Published applications
- 37
- Assignees
- 43
- Inventors
- 109
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 2 | 4 |
| 2006 | 2 | 3 |
| 2007 | 4 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 6 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 3 |
| 2015 | 0 | 0 |
| 2016 | 3 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 2 | 3 |
| 2024 | 0 | 2 |
| 2025 | 2 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fire water plant i11 Aug 2026US 12,704,250 B2
- Hydrothermal treatment15 Jul 2025US 12,359,611 B1
- Method for enhancing combustion reactions in high heat transfer environments1 Jul 2025US 12,345,414 B2Praxair Technology, Inc.
- Dirty water and exhaust constituent free, direct steam generation, convaporator system, apparatus and method25 Apr 2023US 11,635,202 B2XDI Holdings, LLC
- Large scale cost effective direct steam generator system, method, and apparatus11 Apr 2023US 11,624,299 B2XDI Holdings, LLC
- Superheated steam desiccator with depressurized flow for agricultural, commercial and residential applications26 Mar 2026US 2026/0083115 A1
- Hydrogen-fired combustion chamber system, method and plant26 Sep 2024US 2024/0318818 A1Siemens Energy Global GmbH & Co. KG
- Fire Water Plant I27 Jun 2024US 2024/0210028 A1
- Steam generator tool30 Nov 2023US 2023/0383942 A1General Energy Recovery, Inc.
- Dirty water and exhaust constituent free, direct steam generation, convaporator system, apparatus and method14 Sep 2023US 2023/0288054 A1XDI Holdings, LLC
Most cited
By later US patents
- Method and apparatus for extracting crude oil from previously tapped deposits96US 4,224,991 AMesserschmitt-Bolkow-Blohm GmbH · 1980
- Method for the recovery of hydrocarbons87US 5,055,030 APhillips Petroleum Company · 1991
- Condensing furnace with submerged combustion69US 5,097,802 ARaytheon Company · 1992
- Submerged combustion LNG vaporizer66US 7,168,395 B22007
- High pressure combustor for generating steam downhole54US 4,397,356 A1983