Master brake cylinder for a hydraulic vehicle brake system
US-2018345933-A1 · Dec 6, 2018 · US
Piston sealing arrangements
Piston sealing arrangements · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B60T11/236 |
| Official title | Piston sealing arrangements |
| Display label | Piston sealing arrangements |
| Total patents | 142 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 13 |
| 2017 | 18 |
| 2018 | 12 |
| 2019 | 16 |
| 2020 | 14 |
| 2021 | 19 |
| 2022 | 7 |
| 2023 | 10 |
| 2024 | 6 |
| 2025 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric brake system
US-10099671-B2 · Oct 16, 2018 · US
Vehicular brake apparatus
US-2018244251-A1 · Aug 30, 2018 · US
Master cylinder unit
US-2018215361-A1 · Aug 2, 2018 · US
Master cylinder unit
US-2018201247-A1 · Jul 19, 2018 · US
Electric brake system
US-9981645-B2 · May 29, 2018 · US
Master brake cylinder for a hydraulic motor vehicle brake system
US-9969373-B2 · May 15, 2018 · US
Brake master cylinder for a motor vehicle brake system with profiled pressure piston
US-9925966-B2 · Mar 27, 2018 · US
Brake device for a vehicle
US-2018056957-A1 · Mar 1, 2018 · US
Master Brake Cylinder Arrangement for a Hydraulic Motor Vehicle Brake System
US-2018029579-A1 · Feb 1, 2018 · US
Guide ring for a pump element of a vehicle brake system
US-9827967-B2 · Nov 28, 2017 · US
Brake system including pedal simulator
US-2017334416-A1 · Nov 23, 2017 · US
Hydraulic brake mechanism
US-9809274-B2 · Nov 7, 2017 · US
Guide Ring of a Piston Pump for a Vehicle Brake System
US-2017313292-A1 · Nov 2, 2017 · US
Master cylinder with guide sleeve for a sealing lip of the sniffer system
US-2017211596-A1 · Jul 27, 2017 · US
Hydraulic braking device
US-2017203740-A1 · Jul 20, 2017 · US
Brake Apparatus and Master Cylinder
US-2017182988-A1 · Jun 29, 2017 · US
Master cylinder
US-9663085-B2 · May 30, 2017 · US
Master cylinder for a regulated braking system
US-9657752-B2 · May 23, 2017 · US
Brake Apparatus
US-2017113669-A1 · Apr 27, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B60T11/236?
- CPC B60T11/236 is the Cooperative Patent Classification code for “Piston sealing arrangements.”
- How many patents are filed under CPC B60T11/236 (Piston sealing arrangements)?
- Our database includes 142 publications tagged with this CPC code.
- Is patent activity under CPC B60T11/236 growing?
- Publication counts under this code: 6 in 2024 vs 8 in 2025 (latest complete years).