- 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: 107
10-year publication summary
|
11
|
13
|
14
|
7
|
9
|
16
|
18
|
7
|
6
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pratt & Whitney Canada Corp. | 4722 |
30 |
| Astron Aerospace LLC | 14 |
10 |
| LG Electronics Inc. | 72890 |
4 |
| LiquidPiston, Inc. | 49 |
4 |
| The United States of America as represented by the Secretary of the Navy | 2744 |
2 |
| Mazda Motor Corporation | 3128 |
2 |
| Concept Solutions Inc. | 3 |
2 |
| Gpouer Co., Ltd. | 4 |
2 |
| Jiangsu University | 1095 |
2 |
| Liung Feng Industrial Co., Ltd. | 6 |
2 |
| Pratt & Whitney Rocketdyne, Inc. | 37 |
2 |
| Prime Mover International, LLC | 2 |
2 |
| REGI U.S., Inc. | 6 |
2 |
| Fuelsave GmbH | 19 |
2 |
| Shaanxi Xin Nian Power Technology Group Co., Ltd. | 2 |
2 |
| General Electric Company | 13762 |
1 |
| Honda Motor Co., Ltd. | 25192 |
1 |
| Ford Global Technologies, LLC | 20532 |
1 |
| Wisconsin Alumni Research Foundation | 3874 |
1 |
| Bombardier Recreational Products Inc. | 1376 |
1 |
| Other owners | 32 |