- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; rotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 2/02 - Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
Patent holdings for IPC class F04C 2/02
Total number of patents in this class: 142
10-year publication summary
|
21
|
12
|
5
|
9
|
11
|
9
|
14
|
17
|
15
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
13 |
| Copeland LP | 656 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
6 |
| Daikin Industries, Ltd. | 9495 |
6 |
| Toyota Industries Corporation | 1010 |
6 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
6 |
| Danfoss Commercial Compressors | 88 |
5 |
| ECP Entwicklungsgesellschaft mbH | 215 |
5 |
| Emerson Climate Technologies, Inc. | 308 |
5 |
| Hanon Systems | 1632 |
4 |
| MAHLE International GmbH | 2670 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
| Agilent Technologies, Inc. | 2744 |
3 |
| Bitzer Kuehlmaschinenbau GmbH | 140 |
3 |
| Danfoss (Tianjin) Ltd. | 83 |
3 |
| Copeland Climate Technologies (Suzhou) Co. Ltd. | 49 |
3 |
| Samsung Electronics Co., Ltd. | 131630 |
2 |
| Hitachi, Ltd. | 16452 |
2 |
| Carrier Corporation | 4759 |
2 |
| Ebara Corporation | 1951 |
2 |
| Other owners | 49 |