- 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 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: 130
10-year publication summary
13
|
12
|
4
|
5
|
7
|
3
|
6
|
6
|
5
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Daikin Industries, Ltd. | 9495 |
67 |
LG Electronics Inc. | 69257 |
11 |
Mitsubishi Electric Corporation | 43934 |
8 |
Panasonic Corporation | 20786 |
6 |
GREE Green Refrigeration Technology Center Co., Ltd. of Zhuhai | 155 |
4 |
Taiho Kogyo Co., Ltd. | 341 |
4 |
Nanyang Technological University | 1739 |
3 |
CAIRE Inc. | 75 |
3 |
Copeland LP | 656 |
3 |
Fujitsu General Limited | 541 |
2 |
Hanon Systems | 1632 |
2 |
Samsung Electronics Co., Ltd. | 131630 |
1 |
Denso Corporation | 23338 |
1 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
1 |
Greystone Technologies Pty Ltd | 10 |
1 |
Guangdong Meizhi Compressor Co., Ltd. | 157 |
1 |
Iwaki Co., Ltd. | 59 |
1 |
Rotomotor Limited | 1 |
1 |
Tocircle Industries AS | 13 |
1 |
Torad Engineering, LLC | 15 |
1 |
Other owners | 8 |