- 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: 114
10-year publication summary
|
4
|
11
|
14
|
18
|
16
|
16
|
12
|
12
|
9
|
0
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 9877 |
13 |
| Welker, Inc. | 30 |
5 |
| Championx USA Inc. | 290 |
5 |
| Baker Hughes Incorporated | 6301 |
4 |
| Clariant International Ltd. | 1003 |
4 |
| Ecolab USA Inc. | 4985 |
4 |
| Iogen Corporation | 121 |
4 |
| ExxonMobil Upstream Research Company | 2724 |
3 |
| King Fahd University of Petroleum & Minerals | 117 |
3 |
| Alltemp Products Company Limited | 68 |
2 |
| Brasscorp Limited | 9 |
2 |
| ChemTreat, Inc. | 171 |
2 |
| Engie | 161 |
2 |
| Fisher Controls International LLC | 1571 |
2 |
| Instituto Mexicano Del Petroleo | 217 |
2 |
| SPI Technology Ltd. | 12 |
2 |
| Total Meter Services Inc. | 6 |
2 |
| LiquidPower Specialty Products, Inc. | 71 |
2 |
| Natural Gas Solutions North America, LLC | 119 |
2 |
| Regas SRL | 2 |
2 |
| Other owners | 47 |