- 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: 409
10-year publication summary
|
59
|
43
|
49
|
44
|
46
|
19
|
31
|
14
|
22
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Atomics Aeronautical Systems, Inc. | 210 |
88 |
| Achates Power, Inc. | 90 |
73 |
| Enginuity Power Systems, Inc. | 42 |
20 |
| Ishikawa Energy Research Co., Ltd. | 106 |
15 |
| Volvo Truck Corporation | 3937 |
12 |
| Mitsubishi Heavy Industries, Ltd. | 9168 |
11 |
| Pinnacle Engines, Inc. | 35 |
11 |
| HTS, LLC | 23 |
10 |
| Kubota Corporation | 4409 |
10 |
| Cummins Inc. | 2641 |
7 |
| Mainspring Energy, Inc. | 125 |
7 |
| Deutsches Zentrum für Luft- und Raumfahrt e.V. | 841 |
6 |
| Cox Powertrain Ltd | 40 |
5 |
| Fairbanks Morse, LLC | 21 |
5 |
| Newlenoir Limited | 21 |
5 |
| AVL Mobility Technologies, Inc. | 48 |
5 |
| OSP Engines Limited | 5 |
4 |
| Two Heads LLC | 7 |
4 |
| z Mechanism Technology Institute Co., Ltd. | 8 |
4 |
| Honda Motor Co., Ltd. | 26105 |
3 |
| Other owners | 104 |