- 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: 32
10-year publication summary
|
6
|
4
|
2
|
1
|
2
|
2
|
2
|
5
|
3
|
2
|
| 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 | 1040 |
5 |
| Eaton Intelligent Power Limited | 6047 |
3 |
| Eaton Corporation | 1812 |
2 |
| Hitachi, Ltd. | 15692 |
2 |
| Hamilton Sundstrand Corporation | 4954 |
2 |
| Siemens AG | 24333 |
1 |
| Toyota Industries Corporation | 1153 |
1 |
| Adixen Vacuum Products | 19 |
1 |
| Ateliers Busch SA | 50 |
1 |
| Edwards Limited | 792 |
1 |
| Epicam Limited | 4 |
1 |
| Hansen Engine Corporation | 11 |
1 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1483 |
1 |
| Jurop S.p.A. | 16 |
1 |
| Philtec Co., Ltd. | 2 |
1 |
| CIRCOR Pumps North America, LLC | 34 |
1 |
| Triad National Security, LLC | 620 |
1 |
| Elivac Inc. | 9 |
1 |
| International Electric Company Limited | 5 |
1 |
| Korea Airro Co., Ltd | 1 |
1 |
| Other owners | 3 |