- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16D - Couplings for transmitting rotationclutchesbrakes
- F16D 3/44 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected the intermediate member being connected to the coupling parts by ridges, pins, balls, or the like guided in grooves or between cogs
Patent holdings for IPC class F16D 3/44
Total number of patents in this class: 20
10-year publication summary
|
3
|
1
|
5
|
0
|
4
|
2
|
1
|
0
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Punk Couplings Limited | 12 |
4 |
| Brother Industries, Ltd. | 12876 |
1 |
| NSK Ltd. | 2824 |
1 |
| Mitsubishi Rayon Co., Ltd. | 870 |
1 |
| Mitsubishi Chemical Corporation | 4681 |
1 |
| C. & E. FEIN GmbH | 190 |
1 |
| CCTY USA Bearing Co. | 5 |
1 |
| David Brown Gear Systems Limited | 2 |
1 |
| Means Industries, Inc. | 163 |
1 |
| Rolls-Royce Corporation | 1680 |
1 |
| Sandvik Mining and Construction Oy | 857 |
1 |
| Steering Solutions IP Holding Corporation | 962 |
1 |
| Ulterra Drilling Technologies, L.P. | 131 |
1 |
| Angle X, Inc. | 5 |
1 |
| Canon Kabushiki Kaisha | 7208 |
1 |
| Qingdao Acme Innovation Technology Co., Ltd. | 10 |
1 |
| Chinatool Mould Systems Co., Ltd. | 3 |
1 |
| Other owners | 0 |