- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01L - Cyclically operating valves for machines or engines
- F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
Patent holdings for IPC class F01L 1/34
Total number of patents in this class: 1637
10-year publication summary
|
175
|
192
|
103
|
78
|
57
|
45
|
13
|
9
|
8
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schaeffler Technologies AG & Co. KG | 9995 |
216 |
| Hyundai Motor Company | 22315 |
128 |
| Denso Corporation | 24480 |
119 |
| Ford Global Technologies, LLC | 20701 |
86 |
| BorgWarner Inc. | 2600 |
77 |
| Toyota Motor Corporation | 32869 |
76 |
| Aisin Seiki Kabushiki Kaisha | 2223 |
63 |
| GM Global Technology Operations LLC | 15162 |
51 |
| Kia Motors Corporation | 7751 |
41 |
| BorgWarner US Technologies LLC | 439 |
41 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12765 |
34 |
| Hitachi Astemo, Ltd. | 6381 |
33 |
| Eaton Intelligent Power Limited | 6023 |
29 |
| Daimler AG | 3360 |
26 |
| Nissan Motor Co., Ltd. | 12550 |
24 |
| Jacobs Vehicle Systems, Inc. | 216 |
24 |
| Mazda Motor Corporation | 3169 |
23 |
| Nittan Valve Co., Ltd. | 132 |
22 |
| Mitsubishi Jidosha Kogyo Kabushiki Kaisha | 1447 |
21 |
| Schaeffler KG | 689 |
18 |
| Other owners | 485 |