- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 18/32 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members
Patent holdings for IPC class F04C 18/32
Total number of patents in this class: 125
10-year publication summary
|
12
|
4
|
5
|
7
|
3
|
7
|
6
|
5
|
6
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daikin Industries, Ltd. | 9991 |
59 |
| LG Electronics Inc. | 72962 |
11 |
| Mitsubishi Electric Corporation | 46037 |
7 |
| Panasonic Corporation | 20124 |
6 |
| GREE Green Refrigeration Technology Center Co., Ltd. of Zhuhai | 164 |
5 |
| Taiho Kogyo Co., Ltd. | 330 |
5 |
| Nanyang Technological University | 2003 |
3 |
| CAIRE Inc. | 78 |
3 |
| Copeland LP | 701 |
3 |
| Busch Produktions GmbH | 13 |
2 |
| Fujitsu General Limited | 602 |
2 |
| Hanon Systems | 1935 |
2 |
| Samsung Electronics Co., Ltd. | 145864 |
1 |
| Denso Corporation | 24259 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 31330 |
1 |
| Greystone Technologies Pty Ltd | 10 |
1 |
| Guangdong Meizhi Compressor Co., Ltd. | 183 |
1 |
| Iwaki Co., Ltd. | 58 |
1 |
| Rotomotor Limited | 1 |
1 |
| Tocircle Industries AS | 12 |
1 |
| Other owners | 9 |