- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 3/36 - Features relating to lubrication
Patent holdings for IPC class F16K 3/36
Total number of patents in this class: 76
10-year publication summary
|
6
|
3
|
2
|
2
|
7
|
10
|
4
|
9
|
7
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cameron International Corporation | 1329 |
9 |
| Downing Wellhead Equipment, LLC | 50 |
9 |
| Applied Materials, Inc. | 18433 |
5 |
| FMC Technologies, Inc. | 600 |
4 |
| Progressive Oilfield Services Ltd. | 3 |
3 |
| Emerson Vulcan Holding LLC | 130 |
3 |
| GE Oil & Gas Pressure Control LP | 75 |
2 |
| Saudi Arabian Oil Company | 12891 |
2 |
| Cameron Technologies Limited | 210 |
2 |
| SCV Valve, LLC | 8 |
2 |
| SPM Oil & Gas Inc. | 323 |
2 |
| Pfizer Inc. | 3370 |
1 |
| Robert Bosch GmbH | 42505 |
1 |
| Hyundai Motor Company | 21748 |
1 |
| Carrier Corporation | 4358 |
1 |
| Kia Motors Corporation | 7758 |
1 |
| Shimadzu Corporation | 6142 |
1 |
| Aramco Services Company | 3921 |
1 |
| Avery Dennison Corporation | 1199 |
1 |
| AWC Frac Valves Inc. | 10 |
1 |
| Other owners | 24 |