Clutch
US-9528560-B2 · Dec 27, 2016 · US
with flat friction surfaces, e.g. discs
with flat friction surfaces, e.g. discs · 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 | F16D27/112 |
| Official title | with flat friction surfaces, e.g. discs |
| Display label | with flat friction surfaces, e.g. discs |
| Total patents | 246 |
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 | 24 |
| 2016 | 41 |
| 2017 | 27 |
| 2018 | 25 |
| 2019 | 33 |
| 2020 | 20 |
| 2021 | 24 |
| 2022 | 19 |
| 2023 | 9 |
| 2024 | 16 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multi-mode cooling pump
US-9523393-B2 · Dec 20, 2016 · US
Image forming apparatus that uses a planetary gear mechanism to change a rotation direction of rollers
US-9501020-B2 · Nov 22, 2016 · US
Electromagnetic clutch and manufacturing method thereof
US-9500239-B2 · Nov 22, 2016 · US
Electromagnetic solenoid with inclined pole faces
US-2016322148-A1 · Nov 3, 2016 · US
Fail-safe dry friction clutch for a vehicle accessory
US-9482286-B2 · Nov 1, 2016 · US
Electromagnetic clutch
US-9482293-B2 · Nov 1, 2016 · US
Electromagnetic clutch having improved clutch pull force
US-2016312840-A1 · Oct 27, 2016 · US
Accessory drive with friction clutch
US-9458897-B2 · Oct 4, 2016 · US
Friction clutch for driven accessory
US-9447826-B2 · Sep 20, 2016 · US
Electromagnetic clutch device, actuator device and controller for controlling opening and closing body for vehicle
US-9422989-B2 · Aug 23, 2016 · US
Wedge clutch with centrifugal retention
US-2016238090-A1 · Aug 18, 2016 · US
Supercharger having pre-boosting configuration
US-2016237885-A1 · Aug 18, 2016 · US
Electromagnetic Clutch
US-2016238087-A1 · Aug 18, 2016 · US
Rotation transmission device
US-2016186820-A1 · Jun 30, 2016 · US
Electromagnetic clutch
US-9360057-B2 · Jun 7, 2016 · US
Electromagnetic coil device
US-2016141086-A1 · May 19, 2016 · US
Friction clutch assemblies
US-2016131198-A1 · May 12, 2016 · US
Actuator device and device for controlling opening/closing body of vehicle
US-2016126812-A1 · May 5, 2016 · US
All-wheel drive driveline with disconnecting axle
US-2016101691-A1 · Apr 14, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16D27/112?
- CPC F16D27/112 is the Cooperative Patent Classification code for “with flat friction surfaces, e.g. discs.”
- How many patents are filed under CPC F16D27/112 (with flat friction surfaces, e.g. discs)?
- Our database includes 246 publications tagged with this CPC code.
- Is patent activity under CPC F16D27/112 growing?
- Publication counts under this code: 16 in 2024 vs 7 in 2025 (latest complete years).