F22B 37/107
Protection of water tubes
Official title: {Protection of water tubes}
F22B37/107 (Protection of water tubes) appears on 96 US grants and 73 published applications in this corpus.
Search patents in F22B- Granted patents
- 96
- Published applications
- 73
- Assignees
- 86
- Inventors
- 261
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 3 |
| 2004 | 1 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 4 |
| 2007 | 3 | 4 |
| 2008 | 0 | 3 |
| 2009 | 0 | 3 |
| 2010 | 3 | 6 |
| 2011 | 2 | 4 |
| 2012 | 3 | 3 |
| 2013 | 2 | 3 |
| 2014 | 1 | 3 |
| 2015 | 2 | 7 |
| 2016 | 3 | 3 |
| 2017 | 3 | 3 |
| 2018 | 3 | 9 |
| 2019 | 5 | 3 |
| 2020 | 2 | 3 |
| 2021 | 2 | 3 |
| 2022 | 2 | 0 |
| 2023 | 1 | 0 |
| 2024 | 3 | 2 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and apparatus for improving steam oxidation resistance of small diameter boiler tube in coal-fired boiler3 Feb 2026US 12,540,729 B2Xi'an Thermal Power Research Institute Co., Ltd.
- Method for fabrication of corrosion-resistant tubing using minimal quantities of specialized material15 Oct 2024US 12,117,166 B2
- High pressure heating installation comprising an advanced panel design and cladding thereof20 Feb 2024US 11,906,158 B2Amsterdam Waste Environmental Consultancy & Technology B.V.
- Coaxial heat transfer tube suitable for a fluidized bed boiler and a method for manufacturing same2 Jan 2024US 11,859,911 B2Valmet Technologies Oy
- Tile assembly for a waterwall panel26 Dec 2023US 11,852,338 B2Zampell Refractories, Inc.
- Method and apparatus for improving steam oxidation resistance of small diameter boiler tube in coal-fired boiler20 Mar 2025US 2025/0093022 A1Xi'an Thermal Power Research Institute Co., Ltd.
- An energy transfer system, a method of manufacturing thereof, and a method of increasing a thermal stability of a working fluid therein23 Jan 2025US 2025/0027730 A1Vito NV
- Wall for a fluidized bed boiler and a fluidized bed boiler29 Aug 2024US 2024/0288158 A1Valmet Technologies Oy
- Method for fabrication of corrosion-resistant tubing using minimal quantities of specialized material11 Apr 2024US 2024/0117964 A1Caliber Elements LLC
- Tile assembly for a waterwall panel11 Nov 2021US 2021/0348758 A1Zampell Refractories, Inc.
Most cited
By later US patents
- Tapered corrosion protection of tubes at mud drum location46US 6,495,268 B1The Babcock & Wilcox Company · 2002
- Boiler tube coating and method for applying the same42US 4,075,376 AEutectic Corporation · 1978
- Refractory tile, mounting device, and method for mounting42US 5,673,527 AZampell Advanced Refractory Technologies, Inc. · 1997
- Boiler tube shield31US 5,884,695 AAmerican Magotteaux Corporation · 1999
- Heating tube for boilers and method of manufacturing the same31US 6,082,444 ATocalo Co., Ltd. · 2000