- 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 18/34 - 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 the movement defined in group or and relative reciprocation between the co-operating members
Patent holdings for IPC class F04C 18/34
Total number of patents in this class: 60
10-year publication summary
9
|
9
|
24
|
7
|
6
|
6
|
0
|
1
|
6
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
GREE Green Refrigeration Technology Center Co., Ltd. of Zhuhai | 155 |
9 |
LG Electronics Inc. | 69257 |
4 |
Mitsubishi Electric Corporation | 43934 |
4 |
Kabushiki Kaisha Toyota Jidoshokki | 1699 |
4 |
Toyota Industries Corporation | 1010 |
3 |
Ateliers Busch SA | 53 |
3 |
Green Refrigeration Equipment Engineering Research Center of Zhuhai GREE Co., Ltd. | 74 |
3 |
Hanon Systems EFP Deutschland GmbH | 79 |
3 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
2 |
Guangdong Meizhi Compressor Co., Ltd. | 157 |
2 |
Pierburg Pump Technology GmbH | 305 |
2 |
1000235904 Ontario Inc. | 5 |
2 |
Samsung Electronics Co., Ltd. | 131630 |
1 |
Robert Bosch GmbH | 40953 |
1 |
Denso Corporation | 23338 |
1 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
1 |
Albert's Generator Services Inc. | 3 |
1 |
Clay Valley Holdings Inc. | 7 |
1 |
Fujitsu General Limited | 541 |
1 |
Hanon Systems | 1632 |
1 |
Other owners | 11 |