- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F03C - Positive-displacement engines driven by liquids
- F03C 2/08 - Rotary-piston engines of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
Patent holdings for IPC class F03C 2/08
Total number of patents in this class: 125
10-year publication summary
|
11
|
8
|
8
|
8
|
4
|
4
|
3
|
5
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6306 |
11 |
| Daikin Industries, Ltd. | 10393 |
7 |
| Smith International, Inc. | 700 |
7 |
| Danfoss A/S | 1404 |
7 |
| Abaco Drilling Technologies LLC | 43 |
7 |
| Baker Hughes Incorporated | 5041 |
5 |
| Parker Intangibles LLC | 1183 |
5 |
| Eaton Corporation | 1807 |
4 |
| Impulse Downhole Solutions Ltd. | 53 |
4 |
| Exponential Technologies, Inc. | 33 |
3 |
| Sumitomo Precision Products Co., Ltd. | 322 |
3 |
| Zhenjiang Dali Hydraulic Motor Co., Ltd. | 7 |
3 |
| Roper Pump Company, LLC | 40 |
3 |
| Hitachi, Ltd. | 15904 |
2 |
| Denso Corporation | 25232 |
2 |
| Weatherford Technology Holdings, LLC | 2068 |
2 |
| Amorphic Tech Ltd. | 8 |
2 |
| LifeCell Corporation | 336 |
2 |
| National Oilwell Varco, L.P. | 1690 |
2 |
| Project Phoenix, LLC | 53 |
2 |
| Other owners | 42 |