Needle for a choke valve assembly
US-2025230876-A1 · Jul 17, 2025 · US
attachable by a threaded connection to the housing
attachable by a threaded connection to the housing · 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 | F16K1/422 |
| Official title | {attachable by a threaded connection to the housing} |
| Display label | attachable by a threaded connection to the housing |
| Total patents | 61 |
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 | 6 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 7 |
| 2020 | 9 |
| 2021 | 10 |
| 2022 | 9 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Needle for a choke valve assembly
US-12270477-B2 · Apr 8, 2025 · US
Needle for a choke valve assembly
US-2024418269-A1 · Dec 19, 2024 · US
Liner for frac pump suction manifold
US-12066113-B2 · Aug 20, 2024 · US
Valve seat installation tool system
US-2024052932-A1 · Feb 15, 2024 · US
Metal-coated seat retention groove and methods therefor
US-11655899-B2 · May 23, 2023 · US
Valve with exchangeable packing seal cartridge
US-2023101258-A1 · Mar 30, 2023 · US
Method of flow control
US-11608899-B2 · Mar 21, 2023 · US
Open circuit diagnostic for pulsed solenoid I/P
US-11525523-B2 · Dec 13, 2022 · US
Method of flow control
US-2022390017-A1 · Dec 8, 2022 · US
Metal-coated seat retention groove and methods therefor
US-2022333694-A1 · Oct 20, 2022 · US
Air conditioning system and electronic expansion valve thereof
US-11473820-B2 · Oct 18, 2022 · US
Electrically actuated flow control valve and method for operation of the flow control valve
US-11428340-B2 · Aug 30, 2022 · US
Metal-coated seat retention groove
US-11408517-B2 · Aug 9, 2022 · US
Flow control valve
US-11365829-B2 · Jun 21, 2022 · US
Leak resistant and serviceable receptacle
US-11353118-B2 · Jun 7, 2022 · US
Valve
US-11326742-B2 · May 10, 2022 · US
Valve seat and cage assembly
US-11143311-B2 · Oct 12, 2021 · US
Valve body for frac pump
US-11085544-B2 · Aug 10, 2021 · US
Open circuit diagnostic for pulsed solenoid i/p
US-2021239233-A1 · Aug 5, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K1/422?
- CPC F16K1/422 is the Cooperative Patent Classification code for “attachable by a threaded connection to the housing.”
- How many patents are filed under CPC F16K1/422 (attachable by a threaded connection to the housing)?
- Our database includes 61 publications tagged with this CPC code.
- Is patent activity under CPC F16K1/422 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).