- 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: 147
10-year publication summary
|
18
|
16
|
16
|
13
|
12
|
12
|
8
|
12
|
17
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 14398 |
18 |
| Championx LLC | 656 |
6 |
| Welker, Inc. | 32 |
5 |
| Baker Hughes Incorporated | 4865 |
4 |
| Marathon Petroleum Company LP | 420 |
4 |
| ExxonMobil Upstream Research Company | 2283 |
3 |
| Iogen Corporation | 160 |
3 |
| King Fahd University of Petroleum & Minerals | 196 |
3 |
| Chengdu Qinchuan IoT Technology Co., Ltd. | 570 |
3 |
| Championx USA Inc. | 172 |
3 |
| Schlumberger Technology Corporation | 11981 |
2 |
| Air Products and Chemicals, Inc. | 1476 |
2 |
| Alltemp Products Company Limited | 41 |
2 |
| Aramco Services Company | 4190 |
2 |
| Brasscorp Limited | 4 |
2 |
| ChemTreat, Inc. | 292 |
2 |
| Ecolab USA Inc. | 5842 |
2 |
| EZ-FLO Injection Systems, Inc. | 6 |
2 |
| Instituto Mexicano Del Petroleo | 200 |
2 |
| SPI Technology Ltd. | 16 |
2 |
| Other owners | 75 |