- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F03C - Positive-displacement engines driven by liquids
- F03C 1/253 - Reciprocating-piston liquid engines with movable cylinders in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders with cylinder axes generally coaxial with, or parallel to, main shaft axis
Patent holdings for IPC class F03C 1/253
Total number of patents in this class: 74
10-year publication summary
|
5
|
9
|
5
|
3
|
2
|
3
|
2
|
3
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1
|
0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
16 |
| Komatsu Ltd. | 4265 |
15 |
| Kayaba Industry Co., Ltd. | 376 |
11 |
| KYB Corporation | 1278 |
11 |
| Nabtesco Corporation | 871 |
5 |
| Hitachi Construction Machinery Co., Ltd. | 2498 |
4 |
| Kabushiki Kaisha Kawasaki Precision Machinery | 11 |
3 |
| Daikin Industries, Ltd. | 9495 |
2 |
| NSK Ltd. | 2719 |
1 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
1 |
| Kanzaki Kokyukoki Mfg. Co., Ltd. | 193 |
1 |
| Kubota Corporation | 3054 |
1 |
| Sunward Intelligent Equipment Co., Ltd. | 39 |
1 |
| Tokai Carbon Co., Ltd. | 99 |
1 |
| Kabushiki Kaisha Toyota Jidoshokki | 1699 |
1 |
| Other owners | 0 |