- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 41/08 - Spindle sealings with stuffing-box with at least one ring provided with axially-protruding peripheral closing-lip
Patent holdings for IPC class F16K 41/08
Total number of patents in this class: 42
10-year publication summary
|
7
|
5
|
6
|
2
|
5
|
4
|
2
|
2
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vetco Gray, LLC | 154 |
4 |
| Mitsubishi Electric Corporation | 45024 |
2 |
| Aktiebolaget SKF | 2856 |
2 |
| GE Oil & Gas Pressure Control LP | 75 |
2 |
| KITZ Corporation | 205 |
2 |
| Suiken Co., Ltd. | 31 |
2 |
| Vetco Gray Inc. | 152 |
2 |
| Schlumberger Technology Corporation | 10317 |
1 |
| Robert Bosch GmbH | 41906 |
1 |
| Denso Corporation | 23855 |
1 |
| Hyundai Motor Company | 20680 |
1 |
| Hamilton Sundstrand Corporation | 4754 |
1 |
| Schaeffler Technologies AG & Co. KG | 9471 |
1 |
| Kia Motors Corporation | 7779 |
1 |
| Aegis Flow Technologies, L.L.C. | 23 |
1 |
| Aegis Technologies LLC | 1 |
1 |
| Dana Automotive Systems Group, LLC | 417 |
1 |
| FMC Technologies, Inc. | 584 |
1 |
| Fujikoki Corporation | 365 |
1 |
| Futaba Industrial Co., Ltd. | 319 |
1 |
| Other owners | 13 |