- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01C - Rotary-piston or oscillating-piston machines or engines
- F01C 21/00 - Component parts, details, or accessories, not provided for in groups
Patent holdings for IPC class F01C 21/00
Total number of patents in this class: 288
10-year publication summary
|
22
|
30
|
28
|
17
|
10
|
14
|
8
|
8
|
14
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 74388 |
14 |
| Pratt & Whitney Canada Corp. | 5059 |
12 |
| Copeland LP | 694 |
10 |
| Bitzer Kuehlmaschinenbau GmbH | 156 |
8 |
| Lumenium LLC | 16 |
8 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1504 |
7 |
| Edwards Limited | 791 |
6 |
| Exponential Technologies, Inc. | 35 |
6 |
| FeTu Limited | 16 |
6 |
| Danfoss A/S | 1374 |
6 |
| Toyota Industries Corporation | 1169 |
5 |
| Otechos AS | 8 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 32983 |
4 |
| Daikin Industries, Ltd. | 10212 |
4 |
| Hamilton Sundstrand Corporation | 5001 |
4 |
| Lontra Limited | 24 |
4 |
| Oerlikon Leybold Vacuum GmbH | 98 |
4 |
| Duplicent, LLC | 57 |
4 |
| Bitzer Kühlmaschinenbau GmbH | 176 |
3 |
| Fujitsu General Limited | 632 |
3 |
| Other owners | 165 |