Drum brake with rotatable brake shoe assembly
US-12583421-B2 · Mar 24, 2026 · US
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Brakes with three or more brake-blocks (self-tightening F16D49/20)
Brakes with three or more brake-blocks (self-tightening F16D49/20) · 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 | F16D49/18 |
| Official title | Brakes with three or more brake-blocks (self-tightening F16D49/20) |
| Display label | Brakes with three or more brake-blocks (self-tightening F16D49/20) |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 5 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Drum brake assembly with brake liner integrated into brake drum
US-12384331-B2 · Aug 12, 2025 · US
Drum brake with rotatable brake shoe assembly
US-2023373448-A1 · Nov 23, 2023 · US
Ventilator with a sensor device to avoid a collision between an object with the rotor
US-11768001-B2 · Sep 26, 2023 · US
Disc brake arrangement having a circumferentially contacted brake disc
US-2023279912-A1 · Sep 7, 2023 · US
Disc brake arrangement having brake lining at in outer circumferential face of a brake disc
US-2023279913-A1 · Sep 7, 2023 · US
Drum brake assembly with brake liner integrated into brake drum
US-2023159006-A1 · May 25, 2023 · US
Torque transfer apparatus and methods of use
US-11231077-B2 · Jan 25, 2022 · US
Vehicle control system
US-2021270333-A1 · Sep 2, 2021 · US
Ventilator with a sensor device to avoid a collision between an object with the rotor
US-2021190352-A1 · Jun 24, 2021 · US
Frictional locking arrangement for a drive of a closure element of a motor vechicle
US-2020181967-A1 · Jun 11, 2020 · US
Drive unit for marine vessels comprised of drive shaft braking and locking system
US-2019168856-A1 · Jun 6, 2019 · US
Constricting drum brake assembly
US-2016363181-A1 · Dec 15, 2016 · US