- 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 33/74 - Sealings of sliding-contact bearings
Patent holdings for IPC class F16C 33/74
Total number of patents in this class: 502
10-year publication summary
|
50
|
34
|
45
|
44
|
36
|
37
|
34
|
22
|
11
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Oiles Corporation | 513 |
63 |
| Eagle Industry Co., Ltd. | 1125 |
50 |
| NTN Corporation | 4977 |
23 |
| Roller Bearing Company of America, Inc. | 207 |
18 |
| Nidec Corporation | 2644 |
14 |
| Caterpillar Inc. | 9509 |
12 |
| Aktiebolaget SKF | 2924 |
12 |
| New Way Machine Components, Inc. | 40 |
11 |
| Schaeffler Technologies AG & Co. KG | 9771 |
9 |
| Seal-ryt Corporation | 34 |
8 |
| Minebea Mitsumi Inc. | 1711 |
8 |
| Nidec GPM GmbH | 140 |
6 |
| Hamilton Sundstrand Corporation | 4834 |
5 |
| EVault, Inc. | 51 |
5 |
| Hyundai Mobis Co., Ltd. | 3113 |
5 |
| MAHLE International GmbH | 2751 |
5 |
| National Oilwell Varco, L.P. | 1648 |
5 |
| Bifröst Research and Development B.V. | 6 |
5 |
| Robert Bosch GmbH | 42505 |
4 |
| Diamet Corporation | 92 |
4 |
| Other owners | 230 |