F03G 7/05
Ocean thermal energy conversion, i.e. otec
Official title: Ocean thermal energy conversion, i.e. OTEC
F03G7/05 (Ocean thermal energy conversion, i.e. otec) appears on 218 US grants and 167 published applications in this corpus.
Search patents in F03G- Granted patents
- 218
- Published applications
- 167
- Assignees
- 78
- Inventors
- 314
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 16 | 0 |
| 1981 | 14 | 0 |
| 1982 | 11 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 3 |
| 2007 | 3 | 2 |
| 2008 | 4 | 4 |
| 2009 | 0 | 12 |
| 2010 | 3 | 8 |
| 2011 | 8 | 17 |
| 2012 | 5 | 12 |
| 2013 | 12 | 13 |
| 2014 | 11 | 14 |
| 2015 | 10 | 16 |
| 2016 | 13 | 11 |
| 2017 | 14 | 4 |
| 2018 | 2 | 5 |
| 2019 | 6 | 3 |
| 2020 | 6 | 5 |
| 2021 | 9 | 10 |
| 2022 | 5 | 13 |
| 2023 | 4 | 3 |
| 2024 | 5 | 5 |
| 2025 | 4 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Submerged water desalination system with product water pump cavitation protection10 Feb 2026US 12,544,717 B2OceanWell Co.
- Reverse convection power generation10 Feb 2026US 12,549,066 B2CFD Research Corporation
- Stretchable organic optoelectronic sensorimotor synapse7 Oct 2025US 12,439,762 B2Seoul National University R&Db Foundation
- Surface modification control stations and methods in a globally distributed array for dynamically adjusting the atmospheric, terrestrial and oceanic properties30 Sep 2025US 12,429,627 B2
- Heat recovery and utilization from subsea field operations27 May 2025US 12,313,044 B2Chevron U.S.A.Inc.
- Self-contained blockchain mining systems, high-energy-density computing systems, and methods of use10 Sep 2026US 2026/0266268 A1Oceanbit Inc.
- Subsea Power Generation4 Dec 2025US 2025/0369426 A1
- Thermoelectric Hydro Energy Harvester28 Aug 2025US 2025/0270982 A1
- Heat conversion system and heat conversion method19 Jun 2025US 2025/0198708 A1Nippon Telegraph and Telephone Corporation
- Heat recovery and utilization from subsea field operations19 Dec 2024US 2024/0418156 A1Chevron U.S.A.Inc.
Most cited
By later US patents
- Submersible power generators and method of operating thereof331US 9,651,032 B2General Electric Company · 2017
- Maritime power plant system with processes for producing, storing and consuming regenerative energy134US 6,100,600 A2000
- Power plant system for utilizing the heat energy of geothermal reservoirs94US 7,178,337 B22007
- Subsea power supply84US 7,224,080 B2Schlumberger Technology Corporation · 2007
- Energy conversion system for deriving useful power from sources of low level heat80US 4,170,878 A1979