- 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: 47
10-year publication summary
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5
|
6
|
2
|
5
|
4
|
2
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2
|
1
|
3
|
1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vetco Gray, LLC | 146 |
4 |
| KITZ Corporation | 209 |
3 |
| Mitsubishi Electric Corporation | 48172 |
2 |
| Aktiebolaget SKF | 3142 |
2 |
| GE Oil & Gas Pressure Control LP | 71 |
2 |
| Suiken Co., Ltd. | 33 |
2 |
| Vetco Gray Inc. | 137 |
2 |
| Schlumberger Technology Corporation | 11879 |
1 |
| Robert Bosch GmbH | 44254 |
1 |
| Denso Corporation | 25645 |
1 |
| Hyundai Motor Company | 24808 |
1 |
| Hamilton Sundstrand Corporation | 5014 |
1 |
| Schaeffler Technologies AG & Co. KG | 11093 |
1 |
| Kia Motors Corporation | 7718 |
1 |
| Aegis Flow Technologies, L.L.C. | 23 |
1 |
| Aegis Technologies LLC | 1 |
1 |
| Aisan Kogyo Kabushiki Kaisha | 771 |
1 |
| Dana Automotive Systems Group, LLC | 476 |
1 |
| Fisher Controls International LLC | 1438 |
1 |
| FMC Technologies, Inc. | 618 |
1 |
| Other owners | 17 |