- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02B - Internal-combustion piston enginescombustion engines in general
- F02B 53/04 - Charge admission or combustion-gas discharge
Patent holdings for IPC class F02B 53/04
Total number of patents in this class: 108
10-year publication summary
|
13
|
14
|
7
|
9
|
16
|
18
|
7
|
6
|
12
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pratt & Whitney Canada Corp. | 5479 |
31 |
| Astron Aerospace LLC | 16 |
12 |
| LG Electronics Inc. | 75694 |
4 |
| LiquidPiston, Inc. | 50 |
4 |
| The United States of America as represented by the Secretary of the Navy | 2858 |
3 |
| Mazda Motor Corporation | 3296 |
2 |
| Gpouer Co., Ltd. | 3 |
2 |
| Jiangsu University | 1166 |
2 |
| Liung Feng Industrial Co., Ltd. | 5 |
2 |
| Pratt & Whitney Rocketdyne, Inc. | 37 |
2 |
| REGI U.S., Inc. | 6 |
2 |
| Fuelsave GmbH | 19 |
2 |
| Shaanxi Xin Nian Power Technology Group Co., Ltd. | 2 |
2 |
| General Electric Company | 13899 |
1 |
| Honda Motor Co., Ltd. | 26025 |
1 |
| Ford Global Technologies, LLC | 21509 |
1 |
| Wisconsin Alumni Research Foundation | 3898 |
1 |
| Bombardier Recreational Products Inc. | 1520 |
1 |
| BRP US Inc. | 302 |
1 |
| Concept Solutions Inc. | 2 |
1 |
| Other owners | 31 |