Apparatus to connect a valve stem to an actuator
US-2018320721-A1 · Nov 8, 2018 · US
Mechanical Engineering
Mechanical Engineering · 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 | F16D1/033 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 141 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 24 |
| 2016 | 18 |
| 2017 | 16 |
| 2018 | 10 |
| 2019 | 16 |
| 2020 | 14 |
| 2021 | 8 |
| 2022 | 14 |
| 2023 | 11 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Power transmission device
US-2018231062-A1 · Aug 16, 2018 · US
Horizontal directional drill pipe drive connection with locking feature
US-9834995-B2 · Dec 5, 2017 · US
Connection for Transmitting Torque and Axial Forces
US-2017328414-A1 · Nov 16, 2017 · US
Control device
US-2017328413-A1 · Nov 16, 2017 · US
Drive shaft locking cap and related mixing system and method
US-9803695-B2 · Oct 31, 2017 · US
Shrink disc connection for surface pump thrust carrying shafts
US-2017248151-A1 · Aug 31, 2017 · US
Transmission system having a double wet clutch mechanism
US-9726232-B2 · Aug 8, 2017 · US
One-way clutch
US-9719566-B2 · Aug 1, 2017 · US
Composite torque tube end fitting attachment method
US-2017191520-A1 · Jul 6, 2017 · US
Compliant shaft for turbine engines
US-2017159608-A1 · Jun 8, 2017 · US
Driving device for hybrid working machine
US-9664107-B2 · May 30, 2017 · US
Shaft coupling assembly and method for coupling shafts
US-9664235-B2 · May 30, 2017 · US
Method and apparatus for assembling a driveshaft flange to a transmission flange
US-9657782-B2 · May 23, 2017 · US
Output shaft adapter
US-9644685-B2 · May 9, 2017 · US
Vibration optimized rotor and a method for producing a vibration optimized rotor
US-9631513-B2 · Apr 25, 2017 · US
Coupling device for connecting a clutch to a turbine train
US-2017037908-A1 · Feb 9, 2017 · US
Method of flange alignment
US-9562569-B2 · Feb 7, 2017 · US
Gas turbine arrangement
US-2016363171-A1 · Dec 15, 2016 · US
Method and tool for producing a coupling with a flat bottom and central protrusion
US-9518612-B2 · Dec 13, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16D1/033?
- CPC F16D1/033 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F16D1/033 (Mechanical Engineering)?
- Our database includes 141 publications tagged with this CPC code.
- Is patent activity under CPC F16D1/033 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).