Damping valve comprising a direction-dependent pilot opening cross-section for a vibration damper
US-10865847-B2 · Dec 15, 2020 · US
with two or more gates
with two or more gates · 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 | F16K3/029 |
| Official title | {with two or more gates} |
| Display label | with two or more gates |
| Total patents | 108 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 12 |
| 2017 | 13 |
| 2018 | 15 |
| 2019 | 6 |
| 2020 | 10 |
| 2021 | 6 |
| 2022 | 8 |
| 2023 | 11 |
| 2024 | 8 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gate valve for continuous tow processing
US-2020292084-A1 · Sep 17, 2020 · US
Port plate with increased rigidness and method for producing such port plate
US-2020263793-A1 · Aug 20, 2020 · US
Vacuum valve
US-10539253-B2 · Jan 21, 2020 · US
Flow rate control device and vehicle
US-10508743-B2 · Dec 17, 2019 · US
Relation to valves
US-10406315-B2 · Sep 10, 2019 · US
Damping Valve Comprising a Direction-Dependent Pilot Opening Cross-Section for a Vibration Damper
US-2019264770-A1 · Aug 29, 2019 · US
Valve, in particular vacuum valve
US-10364899-B2 · Jul 30, 2019 · US
Shutter
US-10354854-B2 · Jul 16, 2019 · US
Valve
US-10213575-B2 · Feb 26, 2019 · US
High temperature, bi-directional shear seal and related methods
US-10100607-B2 · Oct 16, 2018 · US
Blowout prevention system including blind shear ram
US-2018283560-A1 · Oct 4, 2018 · US
Blowout prevention system including blind shear ram
US-2018283128-A1 · Oct 4, 2018 · US
Valve assembly with oil shut-off valve
US-2018274444-A1 · Sep 27, 2018 · US
Early prediction and detection of slide valve sticking in petrochemical plants or refineries
US-2018275691-A1 · Sep 27, 2018 · US
Operating slide valves in petrochemical plants or refineries
US-2018275690-A1 · Sep 27, 2018 · US
Apparatus and method for vacuumizing and sealing a package
US-2018259092-A1 · Sep 13, 2018 · US
Vacuum valve
US-2018216739-A1 · Aug 2, 2018 · US
Shutter
US-2018204713-A1 · Jul 19, 2018 · US
Valve assembly with oil shut-off valve
US-10001060-B2 · Jun 19, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K3/029?
- CPC F16K3/029 is the Cooperative Patent Classification code for “with two or more gates.”
- How many patents are filed under CPC F16K3/029 (with two or more gates)?
- Our database includes 108 publications tagged with this CPC code.
- Is patent activity under CPC F16K3/029 growing?
- Publication counts under this code: 8 in 2024 vs 6 in 2025 (latest complete years).