Salinity gradient grade-scale energy storage method and apparatus
US-2026054222-A1 · Feb 26, 2026 · US
Actuators using the difference in osmotic pressure between fluids
Actuators using the difference in osmotic pressure between fluids · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F03G7/015 |
| Official title | {Actuators using the difference in osmotic pressure between fluids} |
| Display label | Actuators using the difference in osmotic pressure between fluids |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 7 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 6 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Salinity gradient grade-scale energy storage method and apparatus
US-12472468-B2 · Nov 18, 2025 · US
Fresh Water Production and Thermally Regenerative Electrochemical Cycle Using Multiple Stages of Thermally Responsive Mixtures
US-2025329766-A1 · Oct 23, 2025 · US
Bimodal reverse osmosis and pressure retarded osmosis framework
US-12390768-B2 · Aug 19, 2025 · US
Systems and methods of generating low-frequency and persistent haptics using low-voltage and high-pressure flexible electroosmotic actuators
US-2025216944-A1 · Jul 3, 2025 · US
Semi-closed-loop salinity gradient energy harvesting system for sustainable power generation and water treatment
US-2025187950-A1 · Jun 12, 2025 · US
Energy efficient process for concentrating and recovering lithium from a lithium containing brine
US-12297519-B2 · May 13, 2025 · US
Harnessing Metal Ions from Brines
US-2025128211-A1 · Apr 24, 2025 · US
Boron-nitride nanotube membranes
US-12201942-B2 · Jan 21, 2025 · US
Pressure retarded osmosis system
US-2024390854-A1 · Nov 28, 2024 · US
Cross current staged reverse osmosis
US-12065370-B2 · Aug 20, 2024 · US
Method for converting osmotic energy into hydraulic energy and for desalination
US-2024252985-A1 · Aug 1, 2024 · US
Ionic diode manufacturing method using partial thermal expansion of vermiculite-based laminated film and salinity difference power generation system using the same
US-12027729-B2 · Jul 2, 2024 · US
Intermediate power store for power generating systems
US-2024186793-A1 · Jun 6, 2024 · US
Cross current staged reverse osmosis
US-11999643-B2 · Jun 4, 2024 · US
Atomic layer deposition coated pharmaceutical packaging and improved syringes and vials, e.g. for lyophilized/cold-chain drugs/vaccines
US-2023263957-A1 · Aug 24, 2023 · US
Ionic diode manufacturing method using partial thermal expansion of vermiculite-based laminated film and salinity difference power generation system using the same
US-2023170497-A1 · Jun 1, 2023 · US
Device for producing energy by salinity gradient through titanium oxide nanofluid membranes
US-11571659-B2 · Feb 7, 2023 · US
Energy Efficient Process for Concentrating and Recovering Lithium from a Lithium Containing Brine
US-2022364202-A1 · Nov 17, 2022 · US
Salinity gradient grade-scale energy storage method and apparatus
US-2022339583-A1 · Oct 27, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F03G7/015?
- CPC F03G7/015 is the Cooperative Patent Classification code for “Actuators using the difference in osmotic pressure between fluids.”
- How many patents are filed under CPC F03G7/015 (Actuators using the difference in osmotic pressure between fluids)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC F03G7/015 growing?
- Publication counts under this code: 6 in 2024 vs 8 in 2025 (latest complete years).