- 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: 506
10-year publication summary
|
34
|
45
|
44
|
36
|
37
|
32
|
22
|
12
|
16
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Oiles Corporation | 498 |
61 |
| Eagle Industry Co., Ltd. | 1176 |
49 |
| NTN Corporation | 4915 |
21 |
| Roller Bearing Company of America, Inc. | 213 |
18 |
| Nidec Corporation | 2806 |
15 |
| Aktiebolaget SKF | 3126 |
13 |
| Caterpillar Inc. | 10272 |
12 |
| New Way Machine Components, Inc. | 36 |
11 |
| Seal-ryt Corporation | 36 |
11 |
| Minebea Mitsumi Inc. | 1938 |
8 |
| Schaeffler Technologies AG & Co. KG | 10948 |
7 |
| Nidec GPM GmbH | 143 |
6 |
| Hamilton Sundstrand Corporation | 5016 |
5 |
| EVault, Inc. | 45 |
5 |
| Hyundai Mobis Co., Ltd. | 3586 |
5 |
| MAHLE International GmbH | 2911 |
5 |
| National Oilwell Varco, L.P. | 1698 |
5 |
| Bifröst Research and Development B.V. | 6 |
5 |
| Robert Bosch GmbH | 44128 |
4 |
| Diamet Corporation | 91 |
4 |
| Other owners | 236 |