- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16C - Shafts; flexible shafts; mechanical means for transmitting movement in a flexible sheathing; elements of crankshaft mechanisms; pivots; pivotal connections; rotary engineering elements other than gearing, coupling, clutch or brake elements; bearings
- F16C 33/72 - Sealings
Patent holdings for IPC class F16C 33/72
Total number of patents in this class: 322
10-year publication summary
53
|
30
|
29
|
43
|
32
|
25
|
18
|
23
|
9
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Aktiebolaget SKF | 2700 |
35 |
Schaeffler Technologies AG & Co. KG | 8880 |
28 |
NTN Corporation | 5008 |
16 |
Aktiebolaget SKF | 98 |
13 |
NSK Ltd. | 2719 |
10 |
Rtx Corporation | 8674 |
9 |
Nakanishi Metal Works Co., Ltd. | 101 |
8 |
Schaeffler Technologies GmbH & Co. KG | 846 |
7 |
Eagle Industry Co., Ltd. | 1062 |
7 |
General Electric Company | 18133 |
6 |
NOK Corporation | 2108 |
5 |
Consolidated Metco, Inc. | 145 |
4 |
Evapco, Inc. | 244 |
4 |
Nippon Thompson Co., Ltd. | 192 |
4 |
The Timken Company | 392 |
4 |
Dodge Industrial, Inc. | 136 |
4 |
Robert Bosch GmbH | 40953 |
3 |
AES Engineering Ltd. | 95 |
3 |
Amsted Rail Company, Inc. | 432 |
3 |
Hantover, Inc. | 63 |
3 |
Other owners | 146 |