Master brake cylinder for a hydraulic vehicle brake system
US-2021086730-A1 · Mar 25, 2021 · US
including valve means of the relay or driver controlled type
including valve means of the relay or driver controlled type · 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 | B60T8/38 |
| Official title | including valve means of the relay or driver controlled type |
| Display label | including valve means of the relay or driver controlled type |
| Total patents | 68 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 9 |
| 2017 | 9 |
| 2018 | 12 |
| 2019 | 8 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Automatic control braking system for vehicles
US-10933850-B2 · Mar 2, 2021 · US
Vehicle brake system with front axle overboost
US-10814853-B2 · Oct 27, 2020 · US
Master cylinder and electronic brake system including the same
US-10744987-B2 · Aug 18, 2020 · US
Variable-torque emergency brake device
US-10717424-B2 · Jul 21, 2020 · US
Master brake cylinder for a hydraulic vehicle brake system
US-10668910-B2 · Jun 2, 2020 · US
Automatic control braking system for vehicles
US-10625725-B2 · Apr 21, 2020 · US
System and method for controlling wheel brakes on a trailer in a tractor-trailer
US-10589728-B2 · Mar 17, 2020 · US
Valve system and method for controlling same
US-10543826-B2 · Jan 28, 2020 · US
System and Method for Controlling Wheel Brakes on a Trailer in a Tractor-Trailer
US-2019299946-A1 · Oct 3, 2019 · US
Vehicle Brake System with Front Axle Overboost
US-2019225205-A1 · Jul 25, 2019 · US
Brake system and method for the operation thereof
US-2019152456-A1 · May 23, 2019 · US
Pneumatic panic brake assist
US-10272890-B2 · Apr 30, 2019 · US
Brake modulator for a compressed air braking system of a vehicle
US-10259436-B2 · Apr 16, 2019 · US
Master cylinder and electronic brake system including the same
US-2019047529-A1 · Feb 14, 2019 · US
Automatic control braking system for vehicles
US-2019009763-A1 · Jan 10, 2019 · US
Automatic control braking system for vehicles
US-2019009761-A1 · Jan 10, 2019 · US
Variable-torque emergency brake device
US-2018370511-A1 · Dec 27, 2018 · US
Pneumatic panic brake assist
US-2018354475-A1 · Dec 13, 2018 · US
Master brake cylinder for a hydraulic vehicle brake system
US-2018345933-A1 · Dec 6, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B60T8/38?
- CPC B60T8/38 is the Cooperative Patent Classification code for “including valve means of the relay or driver controlled type.”
- How many patents are filed under CPC B60T8/38 (including valve means of the relay or driver controlled type)?
- Our database includes 68 publications tagged with this CPC code.
- Is patent activity under CPC B60T8/38 growing?
- Publication counts under this code: 3 in 2023 vs 3 in 2025 (latest complete years).