- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 41/02 - Spindle sealings with stuffing-box
Patent holdings for IPC class F16K 41/02
Total number of patents in this class: 208
10-year publication summary
|
13
|
15
|
25
|
13
|
24
|
12
|
19
|
19
|
25
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fisher Controls International LLC | 1453 |
40 |
| Mueller International, LLC | 746 |
8 |
| Bray International, Inc. | 151 |
7 |
| Samson Aktiengesellschaft | 277 |
7 |
| A.W. Chesterton Company | 94 |
5 |
| Flowserve Pte. Ltd | 382 |
5 |
| The Procter & Gamble Company | 21856 |
4 |
| EGC Operating Company LLC dba EGC Enterprises, Inc. | 4 |
4 |
| Hamilton Sundstrand Corporation | 5013 |
3 |
| IDEX MPT Inc. | 53 |
3 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 710 |
3 |
| Xomox International GmbH & Co. OHG | 5 |
3 |
| Asco SAS | 16 |
3 |
| Dresser LLC | 297 |
3 |
| Mitsubishi Electric Corporation | 48097 |
2 |
| Baoyi Group Co., Ltd. | 6 |
2 |
| Cameron International Corporation | 1370 |
2 |
| GREE Electric Appliances, Inc. of Zhuhai | 3318 |
2 |
| Marathon Petroleum Company LP | 417 |
2 |
| Neway Valve (Suzhou) Co., Ltd. | 43 |
2 |
| Other owners | 98 |