- Sections
- F - Mécaniqueéclairagechauffagearmementsautage
- F02B - Moteurs à combustion interne à pistonsmoteurs à combustion en général
- F02B 55/02 - Pistons
Détention brevets de la classe F02B 55/02
Brevets de cette classe: 101
Historique des publications depuis 10 ans
|
18
|
13
|
19
|
9
|
24
|
18
|
22
|
11
|
12
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Pratt & Whitney Canada Corp. | 4533 |
19 |
| Lumenium LLC | 16 |
8 |
| LG Electronics Inc. | 72357 |
6 |
| Jiangsu University | 1091 |
5 |
| WB Development Company, LLC | 20 |
5 |
| The United States of America as represented by the Secretary of the Navy | 2736 |
4 |
| Eagle Industry Co., Ltd. | 1125 |
3 |
| LiquidPiston, Inc. | 48 |
3 |
| Pratt & Whitney Rocketdyne, Inc. | 37 |
3 |
| Huazhong University of Science and Technology | 1031 |
2 |
| Okamura Yugen Kaisha | 24 |
2 |
| Circle Engine Co | 2 |
2 |
| Duplicent, LLC | 44 |
2 |
| Astron Aerospace LLC | 14 |
2 |
| Rotary Research Group LLC | 2 |
2 |
| Shaanxi Xin Nian Power Technology Group Co., Ltd. | 2 |
2 |
| Wisconsin Alumni Research Foundation | 3867 |
1 |
| Mazda Motor Corporation | 3113 |
1 |
| Beihang University | 503 |
1 |
| Ceramic Rotary Engines, Inc. | 1 |
1 |
| Autres propriétaires | 27 |