- 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: 1519
10-year publication summary
|
193
|
105
|
78
|
58
|
45
|
13
|
9
|
8
|
10
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schaeffler Technologies AG & Co. KG | 11233 |
210 |
| Hyundai Motor Company | 25119 |
128 |
| Denso Corporation | 25820 |
100 |
| Ford Global Technologies, LLC | 21645 |
82 |
| BorgWarner Inc. | 2586 |
72 |
| Toyota Motor Corporation | 36389 |
65 |
| Aisin Seiki Kabushiki Kaisha | 2147 |
60 |
| GM Global Technology Operations LLC | 16255 |
49 |
| Kia Motors Corporation | 7713 |
41 |
| BorgWarner US Technologies LLC | 430 |
38 |
| Hitachi Astemo, Ltd. | 6434 |
33 |
| Eaton Intelligent Power Limited | 6295 |
29 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12301 |
25 |
| Nissan Motor Co., Ltd. | 13083 |
22 |
| Mazda Motor Corporation | 3326 |
22 |
| Jacobs Vehicle Systems, Inc. | 214 |
20 |
| Mitsubishi Jidosha Kogyo Kabushiki Kaisha | 1605 |
20 |
| Nittan Valve Co., Ltd. | 127 |
20 |
| Mercedes-Benz Group AG | 5632 |
19 |
| ThyssenKrupp Presta Teccenter AG | 226 |
17 |
| Other owners | 447 |