- 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: 80
10-year publication summary
|
3
|
2
|
2
|
7
|
10
|
4
|
9
|
6
|
7
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cameron International Corporation | 1367 |
9 |
| Bestway Oilfield, Inc. | 47 |
9 |
| Downing Wellhead Equipment, LLC | 52 |
6 |
| FMC Technologies, Inc. | 621 |
4 |
| Progressive Oilfield Services Ltd. | 3 |
3 |
| Emerson Vulcan Holding LLC | 128 |
3 |
| Delta Faucet Company | 2857 |
2 |
| GE Oil & Gas Pressure Control LP | 71 |
2 |
| Saudi Arabian Oil Company | 14390 |
2 |
| Cameron Technologies Limited | 234 |
2 |
| SCV Valve, LLC | 14 |
2 |
| SPM Oil & Gas Inc. | 361 |
2 |
| Weir Minerals U.S. Inc. | 13 |
2 |
| Pfizer Inc. | 3422 |
1 |
| Robert Bosch GmbH | 44363 |
1 |
| Hyundai Motor Company | 25034 |
1 |
| Kia Motors Corporation | 7713 |
1 |
| Shimadzu Corporation | 6376 |
1 |
| Aramco Services Company | 4191 |
1 |
| Avery Dennison Corporation | 1160 |
1 |
| Other owners | 25 |