Thermally isolated thermionic hollow cathodes
US-2017367168-A1 · Dec 21, 2017 · US
Ion or plasma engines · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B64G1/413 |
| Official title | {Ion or plasma engines} |
| Display label | Ion or plasma engines |
| Total patents | 292 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 31 |
| 2017 | 23 |
| 2018 | 27 |
| 2019 | 23 |
| 2020 | 30 |
| 2021 | 26 |
| 2022 | 22 |
| 2023 | 31 |
| 2024 | 28 |
| 2025 | 26 |
| 2026 | 7 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2017367168-A1 · Dec 21, 2017 · US
US-9828975-B2 · Nov 28, 2017 · US
US-9798008-B2 · Oct 24, 2017 · US
US-2017297747-A1 · Oct 19, 2017 · US
US-2017278683-A1 · Sep 28, 2017 · US
US-9764861-B2 · Sep 19, 2017 · US
US-9656769-B2 · May 23, 2017 · US
US-9650159-B2 · May 16, 2017 · US
US-9643739-B2 · May 9, 2017 · US
US-2017088293-A1 · Mar 30, 2017 · US
US-2017036785-A1 · Feb 9, 2017 · US
US-2016376037-A1 · Dec 29, 2016 · US
US-2016380580-A1 · Dec 29, 2016 · US
US-2016376039-A9 · Dec 29, 2016 · US
US-9527607-B2 · Dec 27, 2016 · US
US-9522746-B1 · Dec 20, 2016 · US
US-9517847-B2 · Dec 13, 2016 · US
US-2016333866-A1 · Nov 17, 2016 · US
US-9494142-B2 · Nov 15, 2016 · US
US-9494143-B1 · Nov 15, 2016 · US
Answers are generated from the same data shown on this page.