- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F17D - Pipe-line systems; pipe-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: 128
10-year publication summary
|
11
|
14
|
18
|
16
|
16
|
13
|
12
|
11
|
8
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 11322 |
16 |
| Welker, Inc. | 32 |
6 |
| Championx USA Inc. | 250 |
6 |
| Baker Hughes Incorporated | 5689 |
4 |
| Clariant International Ltd. | 978 |
4 |
| Iogen Corporation | 136 |
4 |
| ExxonMobil Upstream Research Company | 2525 |
3 |
| King Fahd University of Petroleum & Minerals | 147 |
3 |
| Xtended Hydraulic & Machine Inc. | 3 |
3 |
| Alltemp Products Company Limited | 60 |
2 |
| Aramco Services Company | 3504 |
2 |
| Brasscorp Limited | 7 |
2 |
| ChemTreat, Inc. | 198 |
2 |
| Ecolab USA Inc. | 5190 |
2 |
| Engie | 174 |
2 |
| EZ-FLO Injection Systems, Inc. | 6 |
2 |
| Instituto Mexicano Del Petroleo | 213 |
2 |
| SPI Technology Ltd. | 14 |
2 |
| Total Meter Services Inc. | 8 |
2 |
| LiquidPower Specialty Products, Inc. | 73 |
2 |
| Other owners | 57 |