- 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
|
47
|
30
|
43
|
43
|
35
|
35
|
30
|
20
|
10
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Oiles Corporation | 516 |
63 |
| Eagle Industry Co., Ltd. | 1150 |
48 |
| NTN Corporation | 4960 |
23 |
| Roller Bearing Company of America, Inc. | 208 |
18 |
| Nidec Corporation | 2710 |
15 |
| Aktiebolaget SKF | 3023 |
13 |
| Caterpillar Inc. | 9866 |
12 |
| New Way Machine Components, Inc. | 37 |
11 |
| Seal-ryt Corporation | 35 |
10 |
| Schaeffler Technologies AG & Co. KG | 10376 |
8 |
| Minebea Mitsumi Inc. | 1808 |
8 |
| Nidec GPM GmbH | 140 |
6 |
| Hamilton Sundstrand Corporation | 4961 |
5 |
| EVault, Inc. | 48 |
5 |
| Hyundai Mobis Co., Ltd. | 3317 |
5 |
| MAHLE International GmbH | 2841 |
5 |
| National Oilwell Varco, L.P. | 1703 |
5 |
| Bifröst Research and Development B.V. | 6 |
5 |
| Robert Bosch GmbH | 43114 |
4 |
| Diamet Corporation | 93 |
4 |
| Other owners | 229 |