Shaft Coupling Structure and Telescopic Shaft
US-2020378445-A1 · Dec 3, 2020 · US
with clamping hub; with hub and longitudinal key
with clamping hub; with hub and longitudinal key · 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 | F16D1/04 |
| Official title | with clamping hub; with hub and longitudinal key |
| Display label | with clamping hub; with hub and longitudinal key |
| Total patents | 110 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 9 |
| 2017 | 12 |
| 2018 | 12 |
| 2019 | 10 |
| 2020 | 10 |
| 2021 | 8 |
| 2022 | 10 |
| 2023 | 7 |
| 2024 | 9 |
| 2025 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Disconnect shaft for integrated drive generator
US-10823230-B2 · Nov 3, 2020 · US
Torque Transmission Shaft
US-2020284299-A1 · Sep 10, 2020 · US
Assembly for connecting an adapter shaft to a shaft in a force-fitting manner using a clamping ring
US-2020271163-A1 · Aug 27, 2020 · US
Assembly for connecting an adapter shaft to a shaft in a force-fitting manner using a clamping ring
US-2020271164-A1 · Aug 27, 2020 · US
Modular motor assembly structure
US-2020224726-A1 · Jul 16, 2020 · US
Vehicle with transmission having a spline connection
US-10480583-B2 · Nov 19, 2019 · US
High-speed snap ring and snap ring retention method
US-10458479-B2 · Oct 29, 2019 · US
Connection system for condenser and steam turbine and methods of assembling the same
US-2019285120-A1 · Sep 19, 2019 · US
Torque tube coupler
US-2019280643-A1 · Sep 12, 2019 · US
Coupler for a tool
US-2019269069-A1 · Sep 5, 2019 · US
Retainer for rotating members
US-10378588-B2 · Aug 13, 2019 · US
Support structure for rotating shafts of vehicle
US-10300780-B2 · May 28, 2019 · US
Torque tube coupler
US-10305418-B2 · May 28, 2019 · US
Apparatus for the actuation of a throttle valve, in particular a throttle valve of an intake system of an internal combustion engine
US-10260429-B2 · Apr 16, 2019 · US
Disconnect shaft for integrated drive generator
US-2019101162-A1 · Apr 4, 2019 · US
Shaft coupling
US-2018355898-A1 · Dec 13, 2018 · US
Apparatus to connect a valve stem to an actuator
US-2018320721-A1 · Nov 8, 2018 · US
Transportation apparatus and printing apparatus
US-10093505-B2 · Oct 9, 2018 · US
Support structure for rotating shafts of vehicle
US-2018257476-A1 · Sep 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16D1/04?
- CPC F16D1/04 is the Cooperative Patent Classification code for “with clamping hub; with hub and longitudinal key.”
- How many patents are filed under CPC F16D1/04 (with clamping hub; with hub and longitudinal key)?
- Our database includes 110 publications tagged with this CPC code.
- Is patent activity under CPC F16D1/04 growing?
- Publication counts under this code: 9 in 2024 vs 12 in 2025 (latest complete years).