F22B 37/02
Applicable to more than one kind or type of steam boiler
Official title: applicable to more than one kind or type of steam boiler
F22B37/02 (Applicable to more than one kind or type of steam boiler) appears on 1,755 US grants and 1,151 published applications in this corpus.
Search patents in F22B- Granted patents
- 1,755
- Published applications
- 1,151
- Assignees
- 748
- Inventors
- 3,437
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 31 | 0 |
| 1978 | 23 | 0 |
| 1979 | 12 | 0 |
| 1980 | 31 | 0 |
| 1981 | 42 | 0 |
| 1982 | 23 | 0 |
| 1983 | 32 | 0 |
| 1984 | 46 | 0 |
| 1985 | 46 | 0 |
| 1986 | 53 | 0 |
| 1987 | 79 | 0 |
| 1988 | 56 | 0 |
| 1989 | 39 | 0 |
| 1990 | 41 | 0 |
| 1991 | 33 | 0 |
| 1992 | 34 | 0 |
| 1993 | 25 | 0 |
| 1994 | 36 | 0 |
| 1995 | 14 | 0 |
| 1996 | 30 | 0 |
| 1997 | 14 | 0 |
| 1998 | 38 | 0 |
| 1999 | 21 | 0 |
| 2000 | 29 | 0 |
| 2001 | 30 | 3 |
| 2002 | 17 | 9 |
| 2003 | 18 | 14 |
| 2004 | 17 | 19 |
| 2005 | 11 | 16 |
| 2006 | 11 | 32 |
| 2007 | 17 | 29 |
| 2008 | 15 | 47 |
| 2009 | 15 | 60 |
| 2010 | 29 | 53 |
| 2011 | 36 | 59 |
| 2012 | 30 | 60 |
| 2013 | 38 | 70 |
| 2014 | 51 | 72 |
| 2015 | 40 | 63 |
| 2016 | 56 | 68 |
| 2017 | 47 | 69 |
| 2018 | 59 | 61 |
| 2019 | 78 | 73 |
| 2020 | 57 | 53 |
| 2021 | 58 | 58 |
| 2022 | 48 | 55 |
| 2023 | 47 | 43 |
| 2024 | 38 | 32 |
| 2025 | 33 | 21 |
| 2026 | 8 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F22B 37/10Water tubes541
- F22B 37/48Devices or arrangements for removing water, minerals or sludge from boilers351
- F22B 37/26Steam-separating arrangements208
- F22B 37/22Drums164
- F22B 37/24Supporting, suspending or setting arrangements104
- F22B 37/42Applications, arrangements or dispositions of alarm or automatic safety devices103
- F22B 37/56Boiler cleaning control devices103
- F22B 37/38Determining or indicating operating conditions in steam boilers83
All 15 subgroupsShow fewer
- F22B 37/025Devices and methods for diminishing corrosion65
- F22B 37/04And characterised by material52
- F22B 37/06Flue or fire tubes40
- F22B 37/36Arrangements for sheathing or casing boilers38
- F22B 37/40Arrangements of partition walls in flues of steam boilers30
- F22B 37/58Removing tubes from headers or drums27
- F22B 37/34Adaptations of boilers for promoting water circulation4
Recent patents
- Method of pre-operational cleaning of water and steam systems in combined cycle power plants and combined cycle power plant arranged therefor25 Aug 2026US 12,716,366 B2GE Vernova Infrastructure Technology LLC
- Boiler tube insert and boiler tubes having inserts2 Jun 2026US 12,644,594 B2Cleaver-Brooks, Inc.
- Heat exchanger baffles and methods for manufacturing the same19 May 2026US 12,631,409 B2Bradford White Corporation
- Gas amount prediction method, factory operation method, and gas amount prediction device21 Apr 2026US 12,607,346 B2Jfe Steel Corporation
- Collecting apparatus, condensation equipment, and collecting method10 Feb 2026US 12,546,537 B2Mitsubishi Heavy Industries, Ltd.
- Steam generation unit using a heat exchanger1 Oct 2026US 2026/0298463 A1Trane International Inc.
- Moisture separation heater module and method for installing moisture separation heater3 Sep 2026US 2026/0258940 A1Mitsubishi Heavy Industries, Ltd.
- Load adjustable electrode steam boiler27 Aug 2026US 2026/0251295 A1Fangkuai Boiler Co., Ltd.
- Negative ion detection device20 Aug 2026US 2026/0243751 A1Mitsubishi Heavy Industries, Ltd.
- On-demand rapid steam generator6 Aug 2026US 2026/0227061 A1OhmlQ, Inc.
Most cited
By later US patents
- Cellulosic fibrous structures having at least three regions distinguished by intensive properties235US 5,277,761 AThe Procter & Gamble Company · 1994
- Soot chaser142US 4,869,209 AEngineering Controls, Inc. · 1989
- Cellulosic fibrous structures having at least three regions distinguished by intensive properties115US 5,804,281 AThe Proctor & Gamble Company · 1998
- System and method for heat recovery in a combined cycle power plant105US 4,976,100 AWestinghouse Electric Corp. · 1990
- Method and system for controlling a vapor generator87US 7,167,776 B2Philip Morris USA Inc. · 2007