Dc motor comprising accelerator and energy storage ring
US-2024178772-A1 · May 30, 2024 · US
Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom (discharge tubes functioning as thermionic generators H01J45/00)
Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom (discharge tubes functioning as thermionic generators H01J45/00) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02N3/00 |
| Official title | Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom (discharge tubes functioning as thermionic generators H01J45/00) |
| Display label | Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom (discharge tubes functioning as thermionic generators H01J45/00) |
| Total patents | 117 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 6 |
| 2017 | 11 |
| 2018 | 12 |
| 2019 | 9 |
| 2020 | 12 |
| 2021 | 16 |
| 2022 | 7 |
| 2023 | 12 |
| 2024 | 9 |
| 2025 | 13 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Decorative ring
US-2020381743-A1 · Dec 3, 2020 · US
Electrical energy generating device
US-2020381741-A1 · Dec 3, 2020 · US
Method for generating electrical energy
US-2020381739-A1 · Dec 3, 2020 · US
Electrical energy generating element
US-2020381738-A1 · Dec 3, 2020 · US
Method for making electrical energy generating element
US-2020381742-A1 · Dec 3, 2020 · US
Power generation device and power generation method
US-2020343832-A1 · Oct 29, 2020 · US
Power generation element, power generation module, power generation device, power generation system, and method for manufacturing power generation element
US-2020321502-A1 · Oct 8, 2020 · US
Ribbon type sensor
US-2020256755-A1 · Aug 13, 2020 · US
Power generation element, power generation module, power generation device, and power generation system
US-10707396-B2 · Jul 7, 2020 · US
Energy conversion system including a ballistic rectifier assembly and uses thereof
US-10670001-B2 · Jun 2, 2020 · US
Thermoelectric conversion element, thermoelectric conversion system, power generation method of thermoelectric conversion element, and power generation method of thermoelectric conversion system
US-2020161527-A1 · May 21, 2020 · US
Energy harvesting system based on reverse electro wetting on dielectric
US-2020153363-A1 · May 14, 2020 · US
Supervisory monitor for energy measurement
US-2019348929-A1 · Nov 14, 2019 · US
Chitosan biopolymer and chitosan biopolymer based triboelectric nanogenerators
US-10472500-B2 · Nov 12, 2019 · US
Method and apparatus for energy conversion using microfluidic channel array with hierarchical structure
US-10439519-B2 · Oct 8, 2019 · US
High Performance Electric Generators Boosted by Nuclear Electron Avalanche (NEA)
US-2019288614-A1 · Sep 19, 2019 · US
Thermally driven electrokinetic energy conversion with liquid water microjects
US-10404193-B1 · Sep 3, 2019 · US
High pressure hydrogen electrical power generator
US-2019252707-A1 · Aug 15, 2019 · US
Combined hybrid thermionic and thermoelectric generator
US-10291156-B2 · May 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02N3/00?
- CPC H02N3/00 is the Cooperative Patent Classification code for “Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom (discharge tubes functioning as thermionic generators H01J45/00).”
- How many patents are filed under CPC H02N3/00 (Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom (discharge tubes functioning as thermionic generators H01J45/00))?
- Our database includes 117 publications tagged with this CPC code.
- Is patent activity under CPC H02N3/00 growing?
- Publication counts under this code: 9 in 2024 vs 13 in 2025 (latest complete years).