- 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: 1536
10-year publication summary
|
193
|
105
|
78
|
58
|
45
|
13
|
9
|
8
|
10
|
2
|
| 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 | 11003 |
210 |
| Hyundai Motor Company | 24703 |
128 |
| Denso Corporation | 25579 |
102 |
| Ford Global Technologies, LLC | 21524 |
83 |
| BorgWarner Inc. | 2583 |
75 |
| Toyota Motor Corporation | 35813 |
66 |
| Aisin Seiki Kabushiki Kaisha | 2157 |
60 |
| GM Global Technology Operations LLC | 16155 |
49 |
| Kia Motors Corporation | 7718 |
41 |
| BorgWarner US Technologies LLC | 431 |
39 |
| Hitachi Astemo, Ltd. | 6407 |
33 |
| Eaton Intelligent Power Limited | 6257 |
29 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12378 |
25 |
| Nissan Motor Co., Ltd. | 12966 |
22 |
| Mazda Motor Corporation | 3297 |
22 |
| Jacobs Vehicle Systems, Inc. | 215 |
21 |
| Nittan Valve Co., Ltd. | 129 |
21 |
| Mitsubishi Jidosha Kogyo Kabushiki Kaisha | 1531 |
20 |
| Mercedes-Benz Group AG | 5568 |
19 |
| ThyssenKrupp Presta Teccenter AG | 226 |
17 |
| Other owners | 454 |