- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 123
10-year publication summary
|
19
|
14
|
11
|
8
|
8
|
8
|
4
|
4
|
3
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 5791 |
11 |
| Danfoss A/S | 1259 |
8 |
| Daikin Industries, Ltd. | 9495 |
7 |
| Smith International, Inc. | 761 |
7 |
| Baker Hughes Incorporated | 5689 |
5 |
| Parker Intangibles LLC | 1237 |
5 |
| Abaco Drilling Technologies LLC | 35 |
5 |
| Eaton Corporation | 1839 |
4 |
| Sumitomo Precision Products Co., Ltd. | 273 |
4 |
| Exponential Technologies, Inc. | 37 |
3 |
| Impulse Downhole Solutions Ltd. | 54 |
3 |
| Zhenjiang Dali Hydraulic Motor Co., Ltd. | 7 |
3 |
| Roper Pump Company, LLC | 26 |
3 |
| Hitachi, Ltd. | 16452 |
2 |
| Denso Corporation | 23338 |
2 |
| Weatherford Technology Holdings, LLC | 2135 |
2 |
| Amorphic Tech Ltd. | 6 |
2 |
| LifeCell Corporation | 350 |
2 |
| National Oilwell Varco, L.P. | 1604 |
2 |
| Project Phoenix, LLC | 52 |
2 |
| Other owners | 41 |