- All sections
- B - Performing operations; transporting
- B60T - Vehicle brake control systems or parts thereof; brake control systems or parts thereof, in general; arrangement of braking elements on vehicles in general; portable devices for preventing unwanted movement of vehicles; vehicle modifications to facilitate cooling of brakes
- B60T 15/20 - Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed-air or vacuum source or atmosphere controlled by two fluid pressures
Patent holdings for IPC class B60T 15/20
Total number of patents in this class: 35
10-year publication summary
5
|
4
|
4
|
3
|
2
|
4
|
3
|
0
|
4
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1407 |
9 |
ZF CV Systems Europe BV | 682 |
6 |
WABCO GmbH | 483 |
4 |
Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 566 |
3 |
New York Air Brake LLC | 261 |
2 |
Siemens AG | 24990 |
1 |
Blue Leaf I.P., Inc. | 2758 |
1 |
CNH America LLC | 135 |
1 |
CNH Industrial Italia S.p.A. | 132 |
1 |
Haldex Brake Products AB | 170 |
1 |
KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH | 578 |
1 |
Polaris Industries Inc. | 1987 |
1 |
Studio Tecnico 6 M S.r.l. | 5 |
1 |
Zhejiang Vie Science & Technology Co., Ltd. | 4 |
1 |
ZF CV Systems Europe BVBA | 1 |
1 |
Beijing Co Wheels Technology Co., Ltd | 62 |
1 |
Other owners | 0 |