F03G 4/072
Controlling or monitoring
Official title: {Controlling or monitoring}
F03G4/072 (Controlling or monitoring) appears on 125 US grants and 82 published applications in this corpus.
Search patents in F03G- Granted patents
- 125
- Published applications
- 82
- Assignees
- 53
- Inventors
- 144
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 4 |
| 2012 | 2 | 1 |
| 2013 | 2 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 2 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 3 |
| 2020 | 2 | 1 |
| 2021 | 7 | 8 |
| 2022 | 11 | 13 |
| 2023 | 16 | 17 |
| 2024 | 21 | 14 |
| 2025 | 9 | 10 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hybrid flexible energy solution using geothermal and hydrogen for data center applications1 Sep 2026US 12,723,572 B1Microsoft Technology Licensing, LLC
- Methods, systems, and computer-readable media for use in harvesting heat from subterranean geologic formations4 Aug 2026US 12,698,762 B1Maza Aa Energy, Inc.
- Monitoring and managing a geothermal energy system7 Jul 2026US 12,674,440 B2Schlumberger Technology Corporation
- Systems for generating energy from geothermal sources and methods of operating and constructing same30 Jun 2026US 12,669,113 B2Roda Energy Corporation
- Maximizing stimulation efficiency and contact area for heat harvesting31 Mar 2026US 12,590,520 B1Mazama Energy, Inc.
- Systems for Generating Energy from Geothermal Sources and Methods of Operating and Constructing Same10 Sep 2026US 2026/0266266 A1Roda Energy Corporation
- Systems and methods for geothermal energy storage30 Jul 2026US 2026/0218944 A1Fervo Energy Company
- Intervention combinations to boost well performance in geothermal systems29 Jan 2026US 2026/0028968 A1Schlumberger Technology Corporation
- Geothermal power generation system4 Dec 2025US 2025/0369425 A1Fuji Electric Co., Ltd.
- Multiple well pairs for scaling the output of geothermal energy power plants25 Sep 2025US 2025/0297784 A1Geothermal Technologies, Inc.
Most cited
By later US patents
- Method of and apparatus for producing power using steam107US 5,497,624 AOrmat, Inc. · 1996
- Method of and apparatus for retrofitting geothermal power plants80US 4,996,846 AOrmat, Inc. · 1991
- Method of and apparatus for controlling the operation of a valve that regulates the flow of geothermal fluid64US 5,483,797 AOrmat Industries Ltd. · 1996
- System for using geopressured-geothermal reservoirs59US 5,165,235 A1992
- Methods for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on working fluid temperature55US 11,187,212 B1ICE Thermal Harvesting, LLC · 2021