- 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 28/18 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber
Patent holdings for IPC class F04C 28/18
Total number of patents in this class: 78
10-year publication summary
|
8
|
13
|
9
|
7
|
7
|
8
|
5
|
5
|
2
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Copeland LP | 656 |
11 |
| LG Electronics Inc. | 69257 |
8 |
| Trane International Inc. | 1123 |
4 |
| Hitachi Astemo, Ltd. | 5618 |
4 |
| Emerson Climate Technologies, Inc. | 308 |
3 |
| Green Refrigeration Equipment Engineering Research Center of Zhuhai GREE Co., Ltd. | 74 |
3 |
| seepex GmbH | 54 |
3 |
| Robert Bosch GmbH | 40953 |
2 |
| GREE Green Refrigeration Technology Center Co., Ltd. of Zhuhai | 155 |
2 |
| Hanon Systems | 1632 |
2 |
| Schwabische Huttenwerke Automotive GmbH | 68 |
2 |
| Torad Engineering, LLC | 15 |
2 |
| Haier Smart Home Co., Ltd. | 4882 |
2 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| Honda Motor Co., Ltd. | 24537 |
1 |
| Hamilton Sundstrand Corporation | 4525 |
1 |
| Compagnie générale des établissements Michelin SCA | 2477 |
1 |
| Bitzer Kuehlmaschinenbau GmbH | 140 |
1 |
| Fu Sheng Industrial Co., Ltd. | 11 |
1 |
| Other owners | 22 |