Pressure regulator for fluid hammer reduction
US-2021325915-A1 · Oct 21, 2021 · US
with more than one valve
with more than one valve · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16K31/1245 |
| Official title | {with more than one valve} |
| Display label | with more than one valve |
| Total patents | 94 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 8 |
| 2017 | 8 |
| 2018 | 7 |
| 2019 | 10 |
| 2020 | 9 |
| 2021 | 9 |
| 2022 | 9 |
| 2023 | 7 |
| 2024 | 9 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Valve controller and method of controlling a valve
US-2021239143-A1 · Aug 5, 2021 · US
Top cover for a soft throttling valve body, soft throttling valve and method for assembling a soft throttling valve
US-11067191-B2 · Jul 20, 2021 · US
Valve with internal member
US-2021069456-A1 · Mar 11, 2021 · US
Direct-acting valve
US-10927963-B2 · Feb 23, 2021 · US
Pressure relief valve
US-2020378511-A1 · Dec 3, 2020 · US
Abnormality Diagnosis Method of Fluid Supply Line
US-2020363826-A1 · Nov 19, 2020 · US
Valve with internal member
US-10792460-B2 · Oct 6, 2020 · US
Trajectory planning unit, valve arrangement and method
US-2020306966-A1 · Oct 1, 2020 · US
Swing-back preventing apparatus
US-2020277754-A1 · Sep 3, 2020 · US
Solenoid-controlled, liquid cryogenic-hydraulically actuated isolation valve assembly
US-10746132-B2 · Aug 18, 2020 · US
Integrated actuator manifold for multiple valve assembly
US-2020248831-A1 · Aug 6, 2020 · US
Servo valve
US-2020166153-A1 · May 28, 2020 · US
Top cover for a soft throttling valve body, soft throttling valve and method for assembling a soft throttling valve
US-2020063887-A1 · Feb 27, 2020 · US
Apparatus to bias spool valves using supply pressure
US-10508747-B2 · Dec 17, 2019 · US
Solenoid-Controlled, Liquid Cryogenic-Hydraulically Actuated Isolation Valve Assembly
US-2019331060-A1 · Oct 31, 2019 · US
Multi-actuation control system with pressure balancing plumbing
US-10393285-B2 · Aug 27, 2019 · US
Fuel injector having dual solenoid control valves
US-2019186448-A1 · Jun 20, 2019 · US
Valve with internal member
US-2019143072-A1 · May 16, 2019 · US
Valve with a control space vented via a sealing groove
US-10260647-B2 · Apr 16, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K31/1245?
- CPC F16K31/1245 is the Cooperative Patent Classification code for “with more than one valve.”
- How many patents are filed under CPC F16K31/1245 (with more than one valve)?
- Our database includes 94 publications tagged with this CPC code.
- Is patent activity under CPC F16K31/1245 growing?
- Publication counts under this code: 9 in 2024 vs 5 in 2025 (latest complete years).