Nuclear reactor assemblies, nuclear reactor target assemblies, and nuclear reactor methods
US-12531168-B2 · Jan 20, 2026 · US
with fissile or breeder material in solid form within a non-active casing
with fissile or breeder material in solid form within a non-active casing · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G21C3/28 |
| Official title | with fissile or breeder material in solid form within a non-active casing |
| Display label | with fissile or breeder material in solid form within a non-active casing |
| Total patents | 35 |
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 | 2 |
| 2017 | 2 |
| 2018 | 4 |
| 2020 | 5 |
| 2021 | 4 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Plate-shaped nuclear fuel element and method of manufacturing the same
US-2024404714-A1 · Dec 5, 2024 · US
Functionally graded lattice cermet fuel structure with shape corresponding to a mathematically-based periodic solid, particularly for nuclear thermal propulsion applications
US-12159726-B2 · Dec 3, 2024 · US
Functionally graded lattice cermet fuel structure with shape corresponding to a mathematically-based periodic solid, particularly for nuclear thermal propulsion applications
US-12159727-B2 · Dec 3, 2024 · US
Functionally graded lattice cermet fuel structure with shape corresponding to a mathematically-based periodic solid, particularly for nuclear thermal propulsion applications
US-2024266077-A1 · Aug 8, 2024 · US
Additive manufacturing of complex objects using refractory matrix materials
US-11919815-B2 · Mar 5, 2024 · US
Fast reactor with primary and backup control rods
US-11854709-B2 · Dec 26, 2023 · US
Nuclear reactor irradiation systems and methods
US-11842823-B2 · Dec 12, 2023 · US
Functionally graded lattice cermet fuel structure with shape corresponding to a mathematically-based periodic solid, particularly for nuclear thermal propulsion
US-11817225-B2 · Nov 14, 2023 · US
Nuclear fuel elements including protective structures, and related method of forming a nuclear fuel element
US-11587689-B2 · Feb 21, 2023 · US
Functionally graded lattice cermet fuel structure with shape corresponding to a mathematically-based periodic solid, particularly for nuclear thermal propulsion applications
US-2022351870-A1 · Nov 3, 2022 · US
Nuclear Reactor Assemblies, Nuclear Reactor Target Assemblies, and Nuclear Reactor Methods
US-2022277865-A1 · Sep 1, 2022 · US
Functionally graded lattice cermet fuel structure with shape corresponding to a mathematically-based periodic solid, particularly for nuclear thermal propulsion applications
US-11424041-B2 · Aug 23, 2022 · US
Reactor fuel pellets with thermally-conductive inserts, and related reactor fuel pellet arrangements
US-11404177-B2 · Aug 2, 2022 · US
Additive Manufacturing of Complex Objects Using Refractory Matrix Materials
US-2022212363-A1 · Jul 7, 2022 · US
Additive manufacturing of complex objects using refractory matrix materials
US-11285635-B2 · Mar 29, 2022 · US
Thermal-neutron reactor core and design method for thermal-neutron reactor core
US-11177045-B2 · Nov 16, 2021 · US
Core of Fast Reactor and Method of Operating Fast Reactor
US-2021287811-A1 · Sep 16, 2021 · US
Nuclear fuel elements including protective structures, and related methods
US-2021202116-A1 · Jul 1, 2021 · US
Reactor fuel pellets with thermally-conductive inserts, and related reactor fuel pellet arrangements
US-2021125735-A1 · Apr 29, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G21C3/28?
- CPC G21C3/28 is the Cooperative Patent Classification code for “with fissile or breeder material in solid form within a non-active casing.”
- How many patents are filed under CPC G21C3/28 (with fissile or breeder material in solid form within a non-active casing)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC G21C3/28 growing?
- Publication counts under this code: 4 in 2023 vs 5 in 2024 (latest complete years).