- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01L - Cyclically operating valves for machines or engines
- F01L 1/255 - Hydraulic tappets between cam and rocker arm
Patent holdings for IPC class F01L 1/255
Total number of patents in this class: 24
10-year publication summary
|
9
|
2
|
2
|
1
|
1
|
3
|
0
|
1
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Jacobs Vehicle Systems, Inc. | 212 |
3 |
| Wartsila Finland Oy | 740 |
3 |
| Eaton Corporation | 1839 |
2 |
| Cummins Inc. | 2369 |
2 |
| Nittan Valve Co., Ltd. | 138 |
2 |
| Schaeffler KG | 960 |
2 |
| Toyota Motor Corporation | 28582 |
1 |
| Deere & Company | 6845 |
1 |
| Hitachi Automotive Systems, Ltd. | 3970 |
1 |
| Caterpillar Inc. | 8877 |
1 |
| Mazda Motor Corporation | 3087 |
1 |
| Otics Corporation | 57 |
1 |
| Eaton Intelligent Power Limited | 6113 |
1 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
1 |
| Jiangsu Jointek Precision Machinery Co., Ltd | 8 |
1 |
| NITTAN Corporation | 50 |
1 |
| Other owners | 0 |