- 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: 286
10-year publication summary
|
35
|
22
|
30
|
28
|
17
|
10
|
14
|
8
|
8
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73476 |
14 |
| Pratt & Whitney Canada Corp. | 4817 |
12 |
| Copeland LP | 700 |
11 |
| Bitzer Kuehlmaschinenbau GmbH | 153 |
8 |
| Lumenium LLC | 16 |
8 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1465 |
7 |
| Edwards Limited | 793 |
6 |
| Exponential Technologies, Inc. | 36 |
6 |
| FeTu Limited | 16 |
6 |
| Danfoss A/S | 1351 |
6 |
| Toyota Industries Corporation | 1131 |
5 |
| Otechos AS | 8 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 31756 |
4 |
| Daikin Industries, Ltd. | 10058 |
4 |
| Hamilton Sundstrand Corporation | 4906 |
4 |
| Lontra Limited | 25 |
4 |
| Oerlikon Leybold Vacuum GmbH | 102 |
4 |
| Bitzer Kühlmaschinenbau GmbH | 177 |
3 |
| Fujitsu General Limited | 607 |
3 |
| Gebr. Becker GmbH | 55 |
3 |
| Other owners | 163 |