Pressure Relief Assembly
US-2026036216-A1 · Feb 5, 2026 · US
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providing a continuous small flow
providing a continuous small flow · 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 | F16K21/02 |
| Official title | providing a continuous small flow |
| Display label | providing a continuous small flow |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 4 |
| 2023 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for make-up air blocking valve with a restrictive poppet orifice
US-11714019-B2 · Aug 1, 2023 · US
Systems and Methods for Make-Up Air Blocking Valve with a Restrictive Poppet Orifice
US-2023030351-A1 · Feb 2, 2023 · US
Ventilation flow rate regulator for a pressurised tank of a vehicle
US-11155158-B2 · Oct 26, 2021 · US
Venting passage for a servovalve
US-11092256-B2 · Aug 17, 2021 · US
Fluid distributor valve and water purification and dispensing system using the same
US-11060626-B2 · Jul 13, 2021 · US
Water purification and dispensing system and method
US-11035484-B2 · Jun 15, 2021 · US
Valve trim apparatus for use with control valves
US-10605370-B2 · Mar 31, 2020 · US
Water Purification And Dispensing System And Method
US-2020055743-A1 · Feb 20, 2020 · US
Fluid Distributor Valve And Water Purification And Dispensing System Using The Same
US-2020056715-A1 · Feb 20, 2020 · US
Air seeder with infinitely adjustable control valves
US-10470357-B2 · Nov 12, 2019 · US
Valve trim apparatus for use with control valves
US-2019211934-A1 · Jul 11, 2019 · US
Ventilation flow rate regulator for a pressurised tank of a vehicle
US-2019168607-A1 · Jun 6, 2019 · US
Sterilizable pump unit
US-10240596-B2 · Mar 26, 2019 · US
Labor-saving push-button water valve
US-10234054-B1 · Mar 19, 2019 · US
Venting passage for a servovalve
US-2019063629-A1 · Feb 28, 2019 · US
Air seeder with infinitely adjustable control valves
US-2018077856-A1 · Mar 22, 2018 · US
Two-stage switch valve
US-9822892-B2 · Nov 21, 2017 · US
Shut-off valve
US-9816621-B2 · Nov 14, 2017 · US
Solenoid valve
US-9404601-B2 · Aug 2, 2016 · US