- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 18/08 - 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
Patent holdings for IPC class F04C 18/08
Total number of patents in this class: 232
10-year publication summary
|
18
|
26
|
21
|
20
|
21
|
15
|
9
|
20
|
11
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Edwards Limited | 774 |
19 |
| Atlas Copco Airpower, naamloze vennootschap | 1081 |
16 |
| Industrial Technologies and Services, LLC | 165 |
12 |
| Kaeser KOMPRESSOREN SE | 189 |
9 |
| Leybold GmbH | 302 |
7 |
| Eaton Intelligent Power Limited | 6268 |
7 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1551 |
6 |
| Carrier Corporation | 3947 |
5 |
| Pfeiffer Vacuum | 187 |
5 |
| Eaton Corporation | 1803 |
4 |
| Toyota Industries Corporation | 1219 |
4 |
| Ateliers Busch SA | 49 |
4 |
| Jurop S.p.A. | 16 |
4 |
| Gardner Denver, LLC | 18 |
4 |
| GREE Electric Appliances, Inc. of Zhuhai | 3317 |
3 |
| Sterling Industry Consult GmbH | 20 |
3 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 513 |
3 |
| Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1342 |
3 |
| Johnson Controls Tyco IP Holdings LLP | 368 |
3 |
| LG Electronics Inc. | 75855 |
2 |
| Other owners | 109 |