F22B 27/00
Instantaneous or flash steam boilers
F22B27/00 (Instantaneous or flash steam boilers) appears on 116 US grants and 113 published applications in this corpus.
Search patents in F22B- Granted patents
- 116
- Published applications
- 113
- Assignees
- 86
- Inventors
- 283
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 5 |
| 2003 | 3 | 2 |
| 2004 | 3 | 1 |
| 2005 | 2 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 2 | 4 |
| 2009 | 3 | 5 |
| 2010 | 2 | 4 |
| 2011 | 3 | 7 |
| 2012 | 4 | 6 |
| 2013 | 2 | 13 |
| 2014 | 0 | 4 |
| 2015 | 5 | 7 |
| 2016 | 8 | 9 |
| 2017 | 4 | 5 |
| 2018 | 8 | 6 |
| 2019 | 7 | 5 |
| 2020 | 3 | 2 |
| 2021 | 5 | 7 |
| 2022 | 2 | 9 |
| 2023 | 5 | 3 |
| 2024 | 6 | 3 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F22B 27/16Involving spray nozzles for sprinkling or injecting water particles on to or60
- F22B 27/04Built-up from water tubes25
- F22B 27/14Built-up from heat-exchange elements arranged within a confined chamber having heat-retaining walls19
- F22B 27/12Built-up from rotary heat-exchange elements12
- F22B 27/02Built-up from fire tubes5
Recent patents
- Steam generator for fuel cell system27 Jan 2026US 12,535,208 B2Ceres Intellectual Property Company Limited
- Water heater receiving humidified air4 Mar 2025US 12,241,654 B2Kyungdong Navien Co., Ltd.
- Vapor source system based on vapor-liquid ejector supercharging combined with flash vaporization technology18 Feb 2025US 12,228,280 B2Dalian Ocean University
- Steam generation apparatus24 Sep 2024US 12,098,842 B2The Bizser Co., Ltd.
- Steam generator tool3 Sep 2024US 12,078,043 B2General Energy Recovery, Inc.
- Steam generator tool19 Dec 2024US 2024/0418066 A1General Energy Recovery, Inc.
- Steam generator and method24 Oct 2024US 2024/0353093 A1
- Process and Steam Generating Device for Generating Process Steam19 Sep 2024US 2024/0310035 A1Fraunhofer-Gesellschaft zur Forderung der Angwandten Forschung e.V.
- Water heater receiving humidified air4 May 2023US 2023/0139832 A1Kyungdong Navien Co., Ltd.
- Spraying and re-heating vapor reactor and generator apparatus using the same23 Mar 2023US 2023/0089183 A1Big Sun Energy Technology Inc.
Most cited
By later US patents
- Steam generator126US 4,419,302 AMatsushita Electric Industrial Co., Ltd. · 1983
- Combination oven with three-stage water atomizer59US 6,188,045 B1Alto-Shaam, Inc. · 2001
- Method and apparatus for heating, concentrating and evaporating fluid55US 7,614,367 B12009
- Steam generator for convection oven40US 5,394,791 APremark FEG L.L.C. · 1995
- Spiral concentric-tube heat exchanger37US 3,976,129 A1976