F22B 37/38
Determining or indicating operating conditions in steam boilers
Official title: Determining or indicating operating conditions in steam boilers, e.g. monitoring direction or rate of water flow through water tubes
F22B37/38 (Determining or indicating operating conditions in steam boilers) appears on 83 US grants and 99 published applications in this corpus.
Search patents in F22B- Granted patents
- 83
- Published applications
- 99
- Assignees
- 67
- Inventors
- 216
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 2 |
| 2012 | 0 | 3 |
| 2013 | 3 | 5 |
| 2014 | 1 | 5 |
| 2015 | 5 | 4 |
| 2016 | 5 | 9 |
| 2017 | 4 | 11 |
| 2018 | 9 | 2 |
| 2019 | 7 | 6 |
| 2020 | 3 | 11 |
| 2021 | 3 | 7 |
| 2022 | 9 | 11 |
| 2023 | 5 | 9 |
| 2024 | 10 | 5 |
| 2025 | 8 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas amount prediction method, factory operation method, and gas amount prediction device21 Apr 2026US 12,607,346 B2Jfe Steel Corporation
- Steam trap monitoring devices, systems, and related techniques11 Nov 2025US 12,467,586 B2Shoplogix (U.S.) Inc.
- Anomaly detection device and display device12 Aug 2025US 12,385,635 B2IHI Corporation
- System and methods for controlling operation of a recovery boiler to reduce fouling1 Jul 2025US 12,345,410 B2International Paper Company
- Modular mobile heat generation unit for generation of geothermal power in organic rankine cycle operations20 May 2025US 12,305,624 B2ICE Thermal Harvesting, LLC
- Negative ion detection device20 Aug 2026US 2026/0243751 A1Mitsubishi Heavy Industries, Ltd.
- Method for Controlling a Steam Network and Steam Network23 Jul 2026US 2026/0210543 A1Covestro Deutschland AG
- Erosion estimation method29 Aug 2024US 2024/0287914 A1Mitsubishi Heavy Industries, Ltd.
- Systems and methods for generation of electrical power in an organic rankine cycle operation27 Jun 2024US 2024/0209844 A1ICE Thermal Harvesting, LLC
- Steam trap monitoring devices, systems, and related techniques20 Jun 2024US 2024/0200722 A1Everactive, Inc.
Most cited
By later US patents
- Method and system for controlling a vapor generator87US 7,167,776 B2Philip Morris USA Inc. · 2007
- Modular mobile heat generation unit for generation of geothermal power in organic Rankine cycle operations36US 11,486,370 B2ICE Thermal Harvesting, LLC · 2022
- Systems and methods for generation of electrical power in an organic Rankine cycle operation24US 11,421,663 B1ICE Thermal Harvesting, LLC · 2022
- Method for determination of carbon dioxide emissions from combustion sources used to heat a working fluid22US 8,626,450 B2ALSTOM Technology Ltd · 2014
- Measuring device for a heat exchanger21US 8,591,102 B2Clyde Bergemann GmbH Machinen-und Apparatebau · 2013