- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16H - Gearing
- F16H 15/38 - Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces
Patent holdings for IPC class F16H 15/38
Total number of patents in this class: 245
10-year publication summary
24
|
16
|
20
|
15
|
8
|
11
|
7
|
5
|
4
|
0
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
NSK Ltd. | 2791 |
47 |
Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3050 |
32 |
Kawasaki Heavy Industries, Limited | 1654 |
25 |
Transmission Cvtcorp Inc. | 60 |
23 |
Allison Transmission, Inc. | 839 |
22 |
Torotrak (Development) Limited | 44 |
21 |
Mazaro NV | 14 |
10 |
Honda Motor Co., Ltd. | 25425 |
6 |
Allison Transmission, Inc. | 10 |
6 |
Volkswagen AG | 7348 |
5 |
Infinitrak, LLC | 6 |
4 |
Ultimate Transmissions Pty Ltd | 6 |
4 |
Univance Corporation | 116 |
4 |
GM Global Technology Operations LLC | 15150 |
2 |
Rolls-Royce PLC | 3131 |
2 |
JTEKT Corporation | 2517 |
2 |
Aktiebolaget SKF | 2976 |
2 |
TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12758 |
2 |
Supra Lumina Technologies Inc. | 5 |
2 |
Argent Automation Inc. | 4 |
2 |
Other owners | 22 |