F22G 5/123
Water injection apparatus
Official title: {Water injection apparatus}
F22G5/123 (Water injection apparatus) appears on 77 US grants and 64 published applications in this corpus.
Search patents in F22G- Granted patents
- 77
- Published applications
- 64
- Assignees
- 55
- Inventors
- 152
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 0 |
| 2004 | 3 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 3 |
| 2011 | 1 | 2 |
| 2012 | 1 | 4 |
| 2013 | 1 | 1 |
| 2014 | 2 | 7 |
| 2015 | 5 | 5 |
| 2016 | 3 | 4 |
| 2017 | 5 | 2 |
| 2018 | 1 | 3 |
| 2019 | 7 | 5 |
| 2020 | 2 | 5 |
| 2021 | 2 | 1 |
| 2022 | 6 | 4 |
| 2023 | 3 | 2 |
| 2024 | 3 | 3 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Generating electrical energy from hydrogen and oxygen7 Apr 2026US 12,595,761 B2Siemens Energy Global GmbH & Co. KG
- Heat supply-energy-saving equipment for printing and dyeing factory6 May 2025US 12,291,808 B2Guangdong University of Technology
- Steam generation system with subcooled water spray for wellbore steam injection20 Aug 2024US 12,066,183 B1En-Fab Inc.
- Steam generation system with subcooled water spray for wellbore steam injection16 Apr 2024US 11,959,633 B1En-Fab Inc.
- Servo-controlled metering valve and fluid injection system16 Jan 2024US 11,873,921 B2Electric Power Research Institute, Inc.
- System for reheat steam temperature turndown control in heat recovery steam generators8 Oct 2026US 2026/0309057 A1GE Vernova Infrastructure Technology LLC
- Energy storage and utilisation system12 Feb 2026US 2026/0043541 A1Graphite Energy (Assets) Pty Limited
- Multi-venturi inline desuperheater3 Jul 2025US 2025/0216069 A1Fisher Controls International LLC
- Heat supply-energy-saving equipment for printing and dyeing factory20 Feb 2025US 2025/0060093 A1Guangdong University of Technology
- Steam Generation System with Subcooled Water Spray for Wellbore Steam Injection8 Aug 2024US 2024/0263777 A1En-Fab Inc.
Most cited
By later US patents
- Hot to cold steam transformer for turbine systems70US 7,174,715 B2Siemens Power Generation, Inc. · 2007
- Multi-nozzle spray desuperheater45US 4,442,047 AWhite Consolidated Industries, Inc. · 1984
- Steam conditioning valve31US 4,011,287 A1977
- Method for desuperheating steam27US 6,276,823 B1Komax Systems, Inc. · 2001
- Attemperator25US 4,130,611 AYarway Corporation · 1978