Split gate valve with biasing mechanism
US-9845891-B2 · Dec 19, 2017 · US
with screw-spindle {or internally threaded actuating means}
with screw-spindle {or internally threaded actuating means} · 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 | F16K31/50 |
| Official title | with screw-spindle {or internally threaded actuating means} |
| Display label | with screw-spindle {or internally threaded actuating means} |
| Total patents | 301 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 25 |
| 2017 | 23 |
| 2018 | 14 |
| 2019 | 25 |
| 2020 | 35 |
| 2021 | 34 |
| 2022 | 40 |
| 2023 | 25 |
| 2024 | 32 |
| 2025 | 27 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Linear motion mechanism, valve device, and steam turbine
US-2017356532-A1 · Dec 14, 2017 · US
Operator assembly and valve equipped with such assembly
US-2017343129-A1 · Nov 30, 2017 · US
Anode discharge valve for fuel cell system
US-2017309932-A1 · Oct 26, 2017 · US
Hot water delivery
US-2017298596-A1 · Oct 19, 2017 · US
Switching assembly of gas stove
US-9784455-B2 · Oct 10, 2017 · US
Valve operator assembly with freewheel and axial friction means
US-9752701-B2 · Sep 5, 2017 · US
Adjustment arrangement and valve control device comprising an adjustment arrangement
US-2017248210-A1 · Aug 31, 2017 · US
Valve operator assembly, valve equipped with such assembly and assembly process for such a valve
US-2017241564-A1 · Aug 24, 2017 · US
Non-removable discharge device
US-9732856-B2 · Aug 15, 2017 · US
Spool valve
US-2017211699-A1 · Jul 27, 2017 · US
Rotary handle and faucet to which the same is attached
US-2017211261-A1 · Jul 27, 2017 · US
Fine control gas valve
US-9695945-B2 · Jul 4, 2017 · US
Vacuum valve
US-9695948-B2 · Jul 4, 2017 · US
Flow rate control device
US-9664302-B2 · May 30, 2017 · US
Drive sleeve and sealing mechanism for non-rising stem gate valve
US-9664292-B2 · May 30, 2017 · US
High speed shutdown device for electric actuator
US-2017146147-A1 · May 25, 2017 · US
Control member for a fluid control device
US-2017102091-A1 · Apr 13, 2017 · US
Gas knob alignment brackets
US-2017089586-A1 · Mar 30, 2017 · US
Hybrid Manual and Hydraulic Override
US-2017067573-A1 · Mar 9, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K31/50?
- CPC F16K31/50 is the Cooperative Patent Classification code for “with screw-spindle {or internally threaded actuating means}.”
- How many patents are filed under CPC F16K31/50 (with screw-spindle {or internally threaded actuating means})?
- Our database includes 301 publications tagged with this CPC code.
- Is patent activity under CPC F16K31/50 growing?
- Publication counts under this code: 32 in 2024 vs 27 in 2025 (latest complete years).