- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02B - Internal-combustion piston enginescombustion engines in general
- F02B 75/28 - Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
Patent holdings for IPC class F02B 75/28
Total number of patents in this class: 400
10-year publication summary
|
67
|
59
|
43
|
49
|
44
|
46
|
19
|
29
|
14
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Achates Power, Inc. | 205 |
161 |
| Enginuity Power Systems, Inc. | 35 |
19 |
| Volvo Truck Corporation | 3206 |
12 |
| Pinnacle Engines, Inc. | 37 |
11 |
| Ishikawa Energy Research Co., Ltd. | 80 |
11 |
| HTS, LLC | 26 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8582 |
8 |
| Cummins Inc. | 2538 |
7 |
| Kubota Corporation | 3690 |
7 |
| Mainspring Energy, Inc. | 106 |
7 |
| Deutsches Zentrum für Luft- und Raumfahrt e.V. | 782 |
6 |
| Cox Powertrain Ltd | 44 |
5 |
| Fairbanks Morse, LLC | 20 |
5 |
| Newlenoir Limited | 21 |
5 |
| Two Heads LLC | 9 |
5 |
| AVL Mobility Technologies, Inc. | 45 |
5 |
| OSP Engines Limited | 5 |
4 |
| z Mechanism Technology Institute Co., Ltd. | 8 |
4 |
| Honda Motor Co., Ltd. | 25109 |
3 |
| Ford Global Technologies, LLC | 20331 |
3 |
| Other owners | 102 |