- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 18/14 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
Patent holdings for IPC class F04C 18/14
Total number of patents in this class: 30
10-year publication summary
|
7
|
4
|
2
|
1
|
2
|
2
|
2
|
5
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Atlas Copco Airpower, naamloze vennootschap | 1007 |
4 |
| Eaton Intelligent Power Limited | 5912 |
3 |
| Eaton Corporation | 1821 |
2 |
| Hitachi, Ltd. | 15364 |
2 |
| Hamilton Sundstrand Corporation | 4823 |
2 |
| Siemens AG | 24542 |
1 |
| Toyota Industries Corporation | 1082 |
1 |
| Adixen Vacuum Products | 19 |
1 |
| Ateliers Busch SA | 51 |
1 |
| Edwards Limited | 788 |
1 |
| Epicam Limited | 4 |
1 |
| Hansen Engine Corporation | 11 |
1 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1445 |
1 |
| Philtec Co., Ltd. | 2 |
1 |
| CIRCOR Pumps North America, LLC | 33 |
1 |
| Triad National Security, LLC | 602 |
1 |
| Elivac Inc. | 9 |
1 |
| International Electric Company Limited | 5 |
1 |
| Korea Airro Co., Ltd | 1 |
1 |
| Beijing Grand Ray Tech Co., Ltd. | 11 |
1 |
| Other owners | 2 |