- 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 18/04 - Rotary-piston pumps specially adapted for elastic fluids 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 of internal-axis type
Patent holdings for IPC class F04C 18/04
Total number of patents in this class: 30
10-year publication summary
|
6
|
2
|
1
|
2
|
3
|
0
|
4
|
3
|
1
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
6 |
| Daikin Industries, Ltd. | 9495 |
6 |
| Copeland LP | 656 |
3 |
| Emerson Climate Technologies, Inc. | 308 |
2 |
| Anhui Meizhi Precision Manufacturing Co., Ltd. | 48 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| Halliburton Energy Services, Inc. | 20165 |
1 |
| Honeywell International Inc. | 13799 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
1 |
| Anest Iwata Corporation | 168 |
1 |
| Hanon Systems | 1632 |
1 |
| Trane International Inc. | 1123 |
1 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 499 |
1 |
| Siam Compressor Industry Co., Ltd. | 17 |
1 |
| Gardner Denver, LLC | 20 |
1 |
| Industrial Technologies and Services, LLC | 83 |
1 |
| Other owners | 0 |