Pressurizer valve device and reactor facility including the same
US-2025336553-A1 · Oct 30, 2025 · US
Pressure regulating arrangements, i.e. pressurisers
Pressure regulating arrangements, i.e. pressurisers · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G21C1/09 |
| Official title | Pressure regulating arrangements, i.e. pressurisers |
| Display label | Pressure regulating arrangements, i.e. pressurisers |
| Total patents | 31 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 9 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pressurized water reactor with upper vessel section providing both pressure and flow control
US-11837370-B2 · Dec 5, 2023 · US
Passive techniques for long-term reactor cooling
US-2022367075-A1 · Nov 17, 2022 · US
Pressurized water reactor with upper vessel section providing both pressure and flow control
US-2022277862-A1 · Sep 1, 2022 · US
Passive techniques for long-term reactor cooling
US-11355253-B2 · Jun 7, 2022 · US
PWR decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel
US-10950358-B2 · Mar 16, 2021 · US
Pressurized water reactor with upper vessel section providing both pressure and flow control
US-10892061-B2 · Jan 12, 2021 · US
Pwr decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel
US-2020395136-A1 · Dec 17, 2020 · US
Shutdown cooling system and nuclear facility having same
US-10762995-B2 · Sep 1, 2020 · US
PWR decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel
US-10726961-B2 · Jul 28, 2020 · US
Modular reactor steam generator configured to cover a reactor outer wall circumference
US-10249393-B2 · Apr 2, 2019 · US
Pressurized water reactor with upper vessel section providing both pressure and flow control
US-2018322965-A1 · Nov 8, 2018 · US
Stopped cooling system and nuclear facility having same
US-2018308592-A1 · Oct 25, 2018 · US
Hybrid safety injection tank system pressurized with safety valve of pressurizer
US-2018218796-A1 · Aug 2, 2018 · US
Pressurized water reactor with upper vessel section providing both pressure and flow control
US-10020077-B2 · Jul 10, 2018 · US
System for regulating a liquid in a circuit
US-9978465-B2 · May 22, 2018 · US
System for regulating a liquid in a circuit
US-9978464-B2 · May 22, 2018 · US
High temperature gas cooled reactor steam generation system
US-9959945-B2 · May 1, 2018 · US
Pwr decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel
US-2018053571-A1 · Feb 22, 2018 · US
Externally integrated once-through steam generator type small modular reactor
US-2018033500-A1 · Feb 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G21C1/09?
- CPC G21C1/09 is the Cooperative Patent Classification code for “Pressure regulating arrangements, i.e. pressurisers.”
- How many patents are filed under CPC G21C1/09 (Pressure regulating arrangements, i.e. pressurisers)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC G21C1/09 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).