Microgravity in low earth orbit with continuous electric propulsion
US-12589892-B1 · Mar 31, 2026 · US
Unconventional spacecraft propulsion systems
Unconventional spacecraft propulsion systems · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B64G1/409 |
| Official title | {Unconventional spacecraft propulsion systems} |
| Display label | Unconventional spacecraft propulsion systems |
| Total patents | 52 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 8 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 7 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetic multi-pole propulsion array system
US-12391410-B2 · Aug 19, 2025 · US
Electron propulsion engine and method of operation thereof
US-12384563-B1 · Aug 12, 2025 · US
Thruster for micro-satellite and manufacturing method thereof
US-2025091733-A1 · Mar 20, 2025 · US
Microgravity in low earth orbit with continuous electric propulsion
US-12129052-B1 · Oct 29, 2024 · US
Electric propulsion system including heaterless dispenser cathode
US-2024318820-A1 · Sep 26, 2024 · US
Electric propulsion system including heaterless dispenser cathode
US-12044407-B2 · Jul 23, 2024 · US
Electrodeless plasma thruster with closed-ring-shaped gas discharge chamber
US-12012234-B2 · Jun 18, 2024 · US
Magnetic multi-pole propulsion array system
US-2024124163-A1 · Apr 18, 2024 · US
Tunable water-based microthruster devices and methods
US-11878818-B2 · Jan 23, 2024 · US
Propulsion method based on liquid carbon dioxide phase change and propulsion device thereof
US-11858666-B2 · Jan 2, 2024 · US
Silicon oxide coated aluminized Kapton radiator coating for nano-satellite thermal management
US-11814195-B1 · Nov 14, 2023 · US
Electrodeless plasma thruster with close ring-shaped gas discharge chamber
US-2023271728-A1 · Aug 31, 2023 · US
Lithium ion battery de-orbiter
US-11713140-B2 · Aug 1, 2023 · US
Tunable water-based microthruster devices and methods
US-2023070933-A1 · Mar 9, 2023 · US
Electrodynamic assembly for propelling a spacecraft in orbit around a star having a magnetic field
US-11535405-B2 · Dec 27, 2022 · US
Pointing mechanism
US-11459129-B2 · Oct 4, 2022 · US
Electric propulsion system including heaterless dispenser cathode
US-2022165533-A1 · May 26, 2022 · US
Propulsion Method Based on Liquid Carbon Dioxide Phase Change and Propulsion Device Thereof
US-2022056896-A1 · Feb 24, 2022 · US
Lithium ion battery de-orbiter
US-2021387752-A1 · Dec 16, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64G1/409?
- CPC B64G1/409 is the Cooperative Patent Classification code for “Unconventional spacecraft propulsion systems.”
- How many patents are filed under CPC B64G1/409 (Unconventional spacecraft propulsion systems)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC B64G1/409 growing?
- Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).