Passive reactivity control in a nuclear fission reactor
US-12272466-B2 · Apr 8, 2025 · US
by using self-regulating properties of reactor materials, {e.g. Doppler effect}(arrangements that involve temperature stability G21C7/32)
by using self-regulating properties of reactor materials, {e.g. Doppler effect}(arrangements that involve temperature stability G21C7/32) · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G21C7/02 |
| Official title | by using self-regulating properties of reactor materials, {e.g. Doppler effect}(arrangements that involve temperature stability G21C7/32) |
| Display label | by using self-regulating properties of reactor materials, {e.g. Doppler effect}(arrangements that involve temperature stability G21C7/32) |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 6 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Doppler reactivity augmentation device
US-2025079027-A1 · Mar 6, 2025 · US
Nuclear Reactor and Operation Method for Nuclear Reactor
US-2024312649-A1 · Sep 19, 2024 · US
Doppler reactivity augmentation device
US-12046380-B2 · Jul 23, 2024 · US
Nuclear reactors having liquid metal alloy fuels and/or moderators
US-2023377763-A1 · Nov 23, 2023 · US
Nuclear reactors having liquid metal alloy fuels and/or moderators
US-11710577-B2 · Jul 25, 2023 · US
Aqueous assembly and control method
US-2022301736-A1 · Sep 22, 2022 · US
Passive reactivity control in a nuclear fission reactor
US-2022254524-A1 · Aug 11, 2022 · US
Aqueous assembly and control method
US-11361873-B2 · Jun 14, 2022 · US
Passive reactivity control in a nuclear fission reactor
US-11342084-B2 · May 24, 2022 · US
Doppler reactivity augmentation device
US-2021313080-A1 · Oct 7, 2021 · US
Doppler reactivity augmentation device
US-11031142-B2 · Jun 8, 2021 · US
Nuclear reactors having liquid metal alloy fuels and/or moderators
US-2021110940-A1 · Apr 15, 2021 · US
Nuclear reactor and operation method for nuclear reactor
US-2021065921-A1 · Mar 4, 2021 · US
Passive reactivity control in a nuclear fission reactor
US-2020105425-A1 · Apr 2, 2020 · US
Passive reactivity control in a nuclear fission reactor
US-10497480-B2 · Dec 3, 2019 · US
System for the highly autonomous operation of a modular liquid-metal reactor with steam cycle
US-10217536-B2 · Feb 26, 2019 · US
Traveling wave nuclear fission reactor, fuel assembly, and method of utilizing control rods to control burnfront
US-10186333-B2 · Jan 22, 2019 · US
Passive reactivity control in a nuclear fission reactor
US-2018182498-A1 · Jun 28, 2018 · US
Method and system for providing fuel in a nuclear reactor
US-9899106-B2 · Feb 20, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G21C7/02?
- CPC G21C7/02 is the Cooperative Patent Classification code for “by using self-regulating properties of reactor materials, {e.g. Doppler effect}(arrangements that involve temperature stability G21C7/32).”
- How many patents are filed under CPC G21C7/02 (by using self-regulating properties of reactor materials, {e.g. Doppler effect}(arrangements that involve temperature stability G21C7/32))?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC G21C7/02 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).