- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02B - Internal-combustion piston enginescombustion engines in general
- F02B 39/04 - Mechanical drivesVariable-gear-ratio drives
Patent holdings for IPC class F02B 39/04
Total number of patents in this class: 209
10-year publication summary
|
30
|
21
|
15
|
16
|
10
|
5
|
7
|
5
|
5
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kawasaki Motors, Ltd. | 1488 |
18 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3185 |
13 |
| Eaton Corporation | 1809 |
12 |
| Pratt & Whitney Canada Corp. | 5203 |
11 |
| Superturbo Technologies, Inc. | 17 |
10 |
| Eaton Intelligent Power Limited | 6157 |
10 |
| Mazda Motor Corporation | 3255 |
8 |
| Ford Global Technologies, LLC | 21230 |
7 |
| Yamaha Motor Co., Ltd. | 2822 |
5 |
| Torotrak (Development) Limited | 43 |
5 |
| Bayerische Motoren Werke Aktiengesellschaft | 14966 |
4 |
| BorgWarner Inc. | 2584 |
4 |
| Valeo Systemes de Controle Moteur | 594 |
4 |
| Vandyne Superturbo, Inc. | 15 |
4 |
| Ferrari S.p.A. | 1695 |
3 |
| General Atomics Aeronautical Systems, Inc. | 209 |
3 |
| IFP Energies Nouvelles | 3022 |
3 |
| Jaguar Land Rover Limited | 4972 |
3 |
| KASI Technologies AB | 12 |
3 |
| Voith Patent GmbH | 2772 |
3 |
| Other owners | 76 |