- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F17D - Pipe-line systemspipe-lines
- F17D 3/12 - Arrangements for supervising or controlling working operations for injecting a composition into the line
Patent holdings for IPC class F17D 3/12
Total number of patents in this class: 143
10-year publication summary
|
16
|
16
|
11
|
10
|
6
|
9
|
8
|
11
|
13
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13943 |
18 |
| Welker, Inc. | 33 |
5 |
| Championx LLC | 602 |
5 |
| Baker Hughes Incorporated | 5045 |
4 |
| Iogen Corporation | 154 |
4 |
| Marathon Petroleum Company LP | 403 |
4 |
| Championx USA Inc. | 177 |
4 |
| ExxonMobil Upstream Research Company | 2338 |
3 |
| King Fahd University of Petroleum & Minerals | 195 |
3 |
| Xtended Hydraulic & Machine Inc. | 3 |
3 |
| Air Products and Chemicals, Inc. | 1462 |
2 |
| Alltemp Products Company Limited | 41 |
2 |
| Aramco Services Company | 4162 |
2 |
| Brasscorp Limited | 6 |
2 |
| ChemTreat, Inc. | 261 |
2 |
| Ecolab USA Inc. | 5722 |
2 |
| EZ-FLO Injection Systems, Inc. | 6 |
2 |
| Instituto Mexicano Del Petroleo | 214 |
2 |
| SPI Technology Ltd. | 16 |
2 |
| Total Meter Services Inc. | 9 |
2 |
| Other owners | 70 |