Drum brake apparatus
US-2021254678-A1 · Aug 19, 2021 · US
for internally-engaging brakes
for internally-engaging brakes · 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 | F16D65/08 |
| Official title | for internally-engaging brakes |
| Display label | for internally-engaging brakes |
| Total patents | 95 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 7 |
| 2017 | 8 |
| 2018 | 16 |
| 2019 | 10 |
| 2020 | 8 |
| 2021 | 8 |
| 2022 | 7 |
| 2023 | 10 |
| 2024 | 6 |
| 2025 | 5 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Brake assembly for an electric motor
US-2021231181-A1 · Jul 29, 2021 · US
Drum brake apparatus for a vehicle air braking system and method of assembling the same
US-2021167663-A1 · Jun 3, 2021 · US
Brake device and method for operating a brake drum
US-10920838-B2 · Feb 16, 2021 · US
Vehicle drum brake
US-10830300-B2 · Nov 10, 2020 · US
Brake shoe
US-10781873-B2 · Sep 22, 2020 · US
Dual action magnetic brakes and related methods
US-2020284308-A1 · Sep 10, 2020 · US
Brake device and method for operating a brake drum
US-2020182317-A1 · Jun 11, 2020 · US
Vehicle braking systems and methods
US-10598239-B2 · Mar 24, 2020 · US
Residual braking torque indication devices, systems, and methods
US-2020088256-A1 · Mar 19, 2020 · US
Brake shoe
US-10563715-B2 · Feb 18, 2020 · US
Drum Brake Concept for use with an Electric Wheel End Drive Motor
US-2020044514-A1 · Feb 6, 2020 · US
Residual braking torque indication devices, systems, and methods
US-10451130-B2 · Oct 22, 2019 · US
Cylindrical member made of flake graphite cast iron
US-10428407-B2 · Oct 1, 2019 · US
Vehicle drum brake
US-2019293136-A1 · Sep 26, 2019 · US
Method and device of inline testing friction materials and closed loop control thereof
US-2019275620-A1 · Sep 12, 2019 · US
Brake shoe
US-2019203787-A1 · Jul 4, 2019 · US
Method and device for real time estimation of the applied pressure and of noisiness in a brake element, in particular a brake pad
US-2019178322-A1 · Jun 13, 2019 · US
Brake shoe
US-10253830-B2 · Apr 9, 2019 · US
Electric brake device
US-10246064-B2 · Apr 2, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16D65/08?
- CPC F16D65/08 is the Cooperative Patent Classification code for “for internally-engaging brakes.”
- How many patents are filed under CPC F16D65/08 (for internally-engaging brakes)?
- Our database includes 95 publications tagged with this CPC code.
- Is patent activity under CPC F16D65/08 growing?
- Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).