F03G 4/074
Safety arrangements
Official title: {Safety arrangements}
F03G4/074 (Safety arrangements) appears on 351 US grants and 209 published applications in this corpus.
Search patents in F03G- Granted patents
- 351
- Published applications
- 209
- Assignees
- 154
- Inventors
- 489
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 16 | 0 |
| 1978 | 9 | 0 |
| 1979 | 10 | 0 |
| 1980 | 6 | 0 |
| 1981 | 11 | 0 |
| 1982 | 14 | 0 |
| 1983 | 10 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 12 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 5 | 0 |
| 2001 | 10 | 3 |
| 2002 | 0 | 1 |
| 2003 | 4 | 3 |
| 2004 | 4 | 2 |
| 2005 | 4 | 4 |
| 2006 | 4 | 5 |
| 2007 | 2 | 5 |
| 2008 | 2 | 4 |
| 2009 | 4 | 9 |
| 2010 | 2 | 15 |
| 2011 | 2 | 13 |
| 2012 | 4 | 16 |
| 2013 | 8 | 20 |
| 2014 | 15 | 27 |
| 2015 | 14 | 22 |
| 2016 | 18 | 11 |
| 2017 | 17 | 8 |
| 2018 | 10 | 3 |
| 2019 | 2 | 7 |
| 2020 | 4 | 11 |
| 2021 | 10 | 5 |
| 2022 | 3 | 7 |
| 2023 | 8 | 1 |
| 2024 | 1 | 1 |
| 2025 | 4 | 2 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Combined power generation using geothermal and solar energy12 May 2026US 12,624,682 B2Nant Holdings IP, LLC
- Method and apparatus for installing geothermal heat exchanger3 Jun 2025US 12,320,554 B2Geosource Energy Inc.
- Geothermal heat exchange installation and method1 Apr 2025US 12,264,850 B2Eaposys SA
- Monitoring a state of a shape memory material member25 Feb 2025US 12,234,811 B1Toyota Jidosha Kabushiki Kaisha
- Geothermal heat harvesters21 Jan 2025US 12,203,456 B2XGS Energy, Inc.
- System and method for coupling geothermal energy storage with coalbed methane extraction in unmineable coalbed6 Aug 2026US 2026/0226814 A1China University of Geosciences (Wuhan)
- Static mixer as heat exchange enhancer for enhanced and advanced geothermal application23 Jul 2026US 2026/0210584 A1Schlumberger Technology Corporation
- Force-feedback input device28 May 2026US 2026/0147416 A1Alps Alpine Co., Ltd.
- Geothermal Source Power Generation Plant with Computing Facility and Method16 Apr 2026US 2026/0104038 A1
- Method and apparatus for installing geothermal heat exchanger28 Aug 2025US 2025/0271178 A1Geosource Energy Inc.
Most cited
By later US patents
- Method and apparatus for converting heat from geothermal liquid and geothermal steam to electric power142US 5,440,882 AExergy S.P.A. · 1995
- Method and apparatus for converting heat from geothermal fluid to electric power114US 4,982,568 A1991
- Method and apparatus for cooling hot fluids112US 5,860,279 A1999
- Process for heating a fluid in a geothermal formation110US 4,060,988 ATexaco Inc. · 1977
- Method and apparatus for steam generation from isothermal geothermal reservoirs106US 6,073,448 A2000