- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02B - Internal-combustion piston enginescombustion engines in general
- F02B 77/13 - Acoustic insulation
Patent holdings for IPC class F02B 77/13
Total number of patents in this class: 235
10-year publication summary
|
23
|
15
|
21
|
22
|
19
|
12
|
9
|
11
|
7
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichias Corporation | 389 |
14 |
| Sumitomo Riko Company Limited | 1037 |
12 |
| Hyundai Motor Company | 21236 |
9 |
| Mazda Motor Corporation | 3093 |
9 |
| Honda Motor Co., Ltd. | 25109 |
8 |
| Toyota Motor Corporation | 30988 |
7 |
| Ford Global Technologies, LLC | 20331 |
7 |
| Yanmar Co., Ltd. | 1419 |
7 |
| Adler Pelzer Holding GmbH | 93 |
7 |
| Tokai Chemical Industries, Ltd. | 54 |
5 |
| Wuxi Kipor Power Co., Ltd. | 98 |
5 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 756 |
5 |
| Cummins Power Generation IP, Inc. | 284 |
4 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12907 |
4 |
| Robert Bosch GmbH | 42222 |
3 |
| GM Global Technology Operations LLC | 14704 |
3 |
| Tokai Rubber Industries, Ltd. | 163 |
3 |
| Wartsila Finland Oy | 740 |
3 |
| Treves Products, Services & Innovation | 76 |
3 |
| Yanmar Power Technology Co., Ltd. | 576 |
3 |
| Other owners | 114 |