- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16K - Valves; taps; cocks; actuating-floats; devices for venting or aerating
- F16K 41/04 - Spindle sealings with stuffing-box with at least one ring of rubber or like material between spindle and housing
Patent holdings for IPC class F16K 41/04
Total number of patents in this class: 164
10-year publication summary
10
|
10
|
8
|
19
|
15
|
7
|
17
|
15
|
19
|
8
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Fisher Controls International LLC | 1520 |
11 |
Robert Bosch GmbH | 40953 |
4 |
Aegis Flow Technologies, L.L.C. | 23 |
4 |
GE Oil & Gas Pressure Control LP | 76 |
4 |
Asco SAS | 13 |
4 |
Denso Corporation | 23338 |
3 |
Mitsubishi Electric Corporation | 43934 |
3 |
Engineered Controls International, LLC | 122 |
3 |
KITZ Corporation | 197 |
3 |
Parker Hannifin Manufacturing Limited | 51 |
3 |
A&N Corporation | 5 |
3 |
Flowserve Pte. Ltd | 216 |
3 |
Baker Hughes Pressure Control LP | 34 |
3 |
Caterpillar Inc. | 8877 |
2 |
Aisin Seiki Kabushiki Kaisha | 2427 |
2 |
Hamilton Sundstrand Corporation | 4525 |
2 |
Aker Solutions AS | 226 |
2 |
Baoyi Group Co., Ltd. | 6 |
2 |
Bray International, Inc. | 119 |
2 |
Control Components, Inc. | 84 |
2 |
Other owners | 99 |