- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F02B - Internal-combustion piston engines; combustion engines in general
- F02B 23/00 - Other engines characterised by special shape or construction of combustion chambers to improve operation
Patent holdings for IPC class F02B 23/00
Total number of patents in this class: 118
10-year publication summary
|
7
|
12
|
13
|
9
|
6
|
2
|
3
|
4
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 9166 |
10 |
| Mazda Motor Corporation | 3071 |
7 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13086 |
6 |
| Honda Motor Co., Ltd. | 24866 |
4 |
| Toyota Motor Corporation | 30455 |
3 |
| Denso Corporation | 23769 |
3 |
| Nissan Motor Co., Ltd. | 12352 |
3 |
| NGK Insulators, Ltd. | 4792 |
3 |
| BorgWarner Inc. | 2607 |
3 |
| IHI Corporation | 3359 |
3 |
| Isuzu Motors Limited | 2240 |
3 |
| WB Development Company, LLC | 19 |
3 |
| Hitachi Automotive Systems, Ltd. | 3962 |
2 |
| GM Global Technology Operations LLC | 14260 |
2 |
| Ford Global Technologies, LLC | 20070 |
2 |
| Caterpillar Motoren GmbH & Co. KG | 128 |
2 |
| International Engine Intellectual Property Company, LLC | 505 |
2 |
| Lycoming Engines, a division of Avco Corporation | 26 |
2 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 750 |
2 |
| Kabushiki Kaisha Toyota Jidoshokki | 1730 |
2 |
| Other owners | 51 |