- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 27/02 - Liquid sealing for high-vacuum pumps
Patent holdings for IPC class F04C 27/02
Total number of patents in this class: 70
10-year publication summary
|
9
|
1
|
4
|
4
|
6
|
6
|
9
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Edwards Limited | 781 |
6 |
| Daikin Industries, Ltd. | 10400 |
4 |
| Atlas Copco Airpower, naamloze vennootschap | 1064 |
4 |
| Leybold GmbH | 295 |
4 |
| Kobelco Compressors Corporation | 68 |
4 |
| Agilent Technologies, Inc. | 2648 |
3 |
| Hamilton Sundstrand Corporation | 5017 |
3 |
| Kaeser KOMPRESSOREN SE | 187 |
3 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1523 |
2 |
| Schwabische Huttenwerke Automotive GmbH | 63 |
2 |
| Trane International Inc. | 1221 |
2 |
| Joy Global Surface Mining Inc | 372 |
2 |
| Johnson Controls Tyco IP Holdings LLP | 379 |
2 |
| Leybold (Tianjin) International Trade Co Ltd | 3 |
2 |
| Thermo King LLC | 466 |
2 |
| LG Electronics Inc. | 75160 |
1 |
| Purdue Research Foundation | 3861 |
1 |
| BYD Company Limited | 6271 |
1 |
| Clay Valley Holdings Inc. | 6 |
1 |
| Danfoss (Tianjin) Ltd. | 107 |
1 |
| Other owners | 20 |