- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16C - Shaftsflexible shaftsmechanical means for transmitting movement in a flexible sheathingelements of crankshaft mechanismspivotspivotal connectionsrotary engineering elements other than gearing, coupling, clutch or brake elementsbearings
- F16C 33/44 - Selection of substances
Patent holdings for IPC class F16C 33/44
Total number of patents in this class: 234
10-year publication summary
|
24
|
13
|
7
|
11
|
5
|
6
|
16
|
18
|
14
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NTN Corporation | 4914 |
86 |
| Aktiebolaget SKF | 3128 |
24 |
| NSK Ltd. | 2834 |
23 |
| Schaeffler Technologies AG & Co. KG | 10968 |
16 |
| Schaeffler Technologies GmbH & Co. KG | 846 |
9 |
| JTEKT Corporation | 2583 |
7 |
| SKF Aerospace France S.A.S. | 68 |
5 |
| Minebea Mitsumi Inc. | 1943 |
5 |
| Panasonic Corporation | 19019 |
3 |
| Schaeffler KG | 458 |
3 |
| C & U Company Limited | 23 |
3 |
| General Electric Company | 13899 |
2 |
| Japan Aerospace Exploration Agency | 457 |
2 |
| Kyodo Yushi Co., Ltd. | 249 |
2 |
| ThyssenKrupp Rothe Erde GmbH | 66 |
2 |
| Luoyang Bearing Research Institute Co., Ltd. | 15 |
2 |
| ATEC Corporation | 3 |
2 |
| Fukui Seiki Industry Co., Ltd. | 2 |
2 |
| United Technologies Corporation | 2220 |
1 |
| Hon Hai Precision Industry Co., Ltd. | 4022 |
1 |
| Other owners | 34 |