- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01L - Cyclically operating valves for machines or engines
- F01L 1/356 - 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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear making the angular relationship oscillate
Patent holdings for IPC class F01L 1/356
Total number of patents in this class: 323
10-year publication summary
40
|
33
|
48
|
53
|
28
|
40
|
16
|
10
|
10
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hitachi Automotive Systems, Ltd. | 3970 |
62 |
Aisin Seiki Kabushiki Kaisha | 2427 |
51 |
Denso Corporation | 23338 |
50 |
Mitsubishi Electric Corporation | 43934 |
27 |
Hyundai Motor Company | 19021 |
27 |
Hitachi Astemo, Ltd. | 5618 |
18 |
Kia Motors Corporation | 7946 |
9 |
Mazda Motor Corporation | 3087 |
9 |
Mikuni Corporation | 332 |
9 |
TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
8 |
Nissan Motor Co., Ltd. | 12249 |
7 |
Nittan Valve Co., Ltd. | 138 |
7 |
NTN Corporation | 5008 |
6 |
BorgWarner Inc. | 2604 |
3 |
Isuzu Motors Limited | 2158 |
3 |
Toyota Motor Corporation | 28582 |
2 |
Daimler AG | 3462 |
2 |
Schaeffler Technologies AG & Co. KG | 8880 |
2 |
Nippon Soken, Inc. | 363 |
2 |
Schaeffler KG | 960 |
2 |
Other owners | 17 |