- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 17/18 - Safety valvesEqualising valves opening on surplus pressure on either side
Patent holdings for IPC class F16K 17/18
Total number of patents in this class: 92
10-year publication summary
|
4
|
8
|
9
|
7
|
5
|
11
|
7
|
6
|
7
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Neptune Technology Group LLC | 108 |
4 |
| Robert Bosch GmbH | 43554 |
3 |
| Hydro-Gear Limited Partnership | 333 |
3 |
| Celeros Flow Technology, LLC | 39 |
3 |
| Contemporary Amperex Technology (Hong Kong) Limited | 3923 |
3 |
| Chevron U.S.A. Inc. | 4073 |
2 |
| Emerson Process Management Regulator Technologies, Inc. | 389 |
2 |
| Fox Factory, Inc. | 881 |
2 |
| Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1362 |
2 |
| Taiwan Chelic Co., Ltd. | 8 |
2 |
| Jiangsu Contemporary Amperex Technology Limited | 284 |
2 |
| HPDI Technology Limited Partnership | 131 |
2 |
| Halliburton Energy Services, Inc. | 21169 |
1 |
| Deere & Company | 7906 |
1 |
| GM Global Technology Operations LLC | 15776 |
1 |
| Hyundai Motor Company | 23688 |
1 |
| Hamilton Sundstrand Corporation | 5014 |
1 |
| Kia Motors Corporation | 7725 |
1 |
| Active Tools International (HK) Ltd. | 39 |
1 |
| Alligator Ventilfabrik GmbH | 14 |
1 |
| Other owners | 54 |