- 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
|
32
|
20
|
10
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Oiles Corporation | 518 |
63 |
| Eagle Industry Co., Ltd. | 1134 |
49 |
| NTN Corporation | 4981 |
23 |
| Roller Bearing Company of America, Inc. | 208 |
18 |
| Nidec Corporation | 2684 |
14 |
| Aktiebolaget SKF | 2988 |
13 |
| Caterpillar Inc. | 9644 |
12 |
| New Way Machine Components, Inc. | 38 |
11 |
| Seal-ryt Corporation | 35 |
10 |
| Schaeffler Technologies AG & Co. KG | 10035 |
8 |
| Minebea Mitsumi Inc. | 1778 |
8 |
| Nidec GPM GmbH | 140 |
6 |
| Hamilton Sundstrand Corporation | 4931 |
5 |
| EVault, Inc. | 51 |
5 |
| Hyundai Mobis Co., Ltd. | 3248 |
5 |
| MAHLE International GmbH | 2798 |
5 |
| National Oilwell Varco, L.P. | 1690 |
5 |
| Bifröst Research and Development B.V. | 6 |
5 |
| Robert Bosch GmbH | 42826 |
4 |
| Diamet Corporation | 94 |
4 |
| Other owners | 229 |