- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16K - Valves; taps; cocks; actuating-floats; devices for venting or aerating
- F16K 21/04 - Self-closing valves, i.e. closing automatically after operation
Patent holdings for IPC class F16K 21/04
Total number of patents in this class: 209
10-year publication summary
|
26
|
16
|
16
|
21
|
14
|
10
|
10
|
8
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sloan Valve Company | 283 |
9 |
| AptarGroup, Inc. | 223 |
5 |
| Silgan Dispensing Systems Corporation | 322 |
5 |
| Clover Co., Ltd. | 16 |
4 |
| SDB IP Holdings, LLC | 125 |
4 |
| Eaton Intelligent Power Limited | 6293 |
4 |
| GM Global Technology Operations LLC | 14197 |
3 |
| Vitop Moulding S.r.l. | 43 |
3 |
| Ogon Contracting Pty Ltd. | 4 |
3 |
| MH Tech AS | 5 |
3 |
| Samsung Electronics Co., Ltd. | 138518 |
2 |
| LG Electronics Inc. | 70898 |
2 |
| Hyundai Motor Company | 20403 |
2 |
| Hamilton Sundstrand Corporation | 4719 |
2 |
| FCA US LLC | 2877 |
2 |
| AS America, Inc. | 1080 |
2 |
| Delta Faucet Company | 2743 |
2 |
| Ecolab USA Inc. | 5336 |
2 |
| Hamilton Bonaduz AG | 197 |
2 |
| Heartstitch, Inc. | 32 |
2 |
| Other owners | 146 |