F22B 1/22
Methods of steam generation characterised by form of heating method: using combustion
Official title: using combustion under pressure substantially exceeding atmospheric pressure
F22B1/22 (Methods of steam generation characterised by form of heating method: using combustion) appears on 116 US grants and 90 published applications in this corpus.
Search patents in F22B- Granted patents
- 116
- Published applications
- 90
- Assignees
- 83
- Inventors
- 217
- 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 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 9 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 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 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 3 |
| 2005 | 3 | 4 |
| 2006 | 4 | 8 |
| 2007 | 7 | 2 |
| 2008 | 0 | 3 |
| 2009 | 1 | 3 |
| 2010 | 3 | 2 |
| 2011 | 1 | 6 |
| 2012 | 0 | 0 |
| 2013 | 4 | 6 |
| 2014 | 2 | 8 |
| 2015 | 0 | 4 |
| 2016 | 5 | 3 |
| 2017 | 4 | 4 |
| 2018 | 4 | 2 |
| 2019 | 1 | 6 |
| 2020 | 5 | 7 |
| 2021 | 5 | 6 |
| 2022 | 5 | 1 |
| 2023 | 2 | 3 |
| 2024 | 1 | 3 |
| 2025 | 3 | 2 |
| 2026 | 2 | 2 |
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
- Dirty water distillation and salt harvesting system, method, and apparatus6 Jan 2026US 12,515,145 B2Heat IP Holdco, LLC
- 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.
- Modular pressurized coal combustion (MPCC) for flexible generation11 Feb 2025US 12,222,101 B2Washington University
- Superheated steam desiccator with depressurized flow for agricultural, commercial and residential applications26 Mar 2026US 2026/0083115 A1
- Future of fuel station1 Jan 2026US 2026/0001054 A1Ally Power Inc.
- Steam generator18 Dec 2025US 2025/0383078 A1
- Modular pressurized coal combustion plant (mccp) for flexible generation26 Jun 2025US 2025/0207772 A1Washington University
- Hydrogen-fired combustion chamber system, method and plant26 Sep 2024US 2024/0318818 A1Siemens Energy Global GmbH & Co. KG
Most cited
By later US patents
- Pulsing combustion116US 4,569,310 AArkansas Patents, Inc. · 1986
- Method and apparatus for extracting crude oil from previously tapped deposits96US 4,224,991 AMesserschmitt-Bolkow-Blohm GmbH · 1980
- Pulsing combustion90US 4,479,484 AArkansas Patents, Inc. · 1984
- Pulsing combustion90US 4,651,712 AArkansas Patents, Inc. · 1987
- Method for the recovery of hydrocarbons87US 5,055,030 APhillips Petroleum Company · 1991