- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 103/46 - Water-loss reducers, hygroscopic or hydrophilic agents
Patent holdings for IPC class C04B 103/46
Total number of patents in this class: 143
10-year publication summary
|
11
|
31
|
17
|
19
|
7
|
5
|
7
|
8
|
10
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 14235 |
39 |
| Halliburton Energy Services, Inc. | 21338 |
21 |
| Dow Global Technologies LLC | 10944 |
6 |
| ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company | 186 |
6 |
| Schlumberger Technology Corporation | 11818 |
4 |
| Rohm and Haas Company | 2951 |
4 |
| Kuraray Co., Ltd. | 3589 |
3 |
| University of Wyoming | 389 |
3 |
| BASF SE | 21303 |
2 |
| Purdue Research Foundation | 3916 |
2 |
| China National Petroleum Corporation | 636 |
2 |
| Construction Research & Technology GmbH | 602 |
2 |
| Hexion Inc. | 236 |
2 |
| King Fahd University of Petroleum and Minerals | 1572 |
2 |
| Parexgroup SA | 31 |
2 |
| Imertech SAS | 245 |
2 |
| CNPC Engineering Technology R&D Company Limited | 126 |
2 |
| Schlumberger Canada Limited | 7606 |
1 |
| Schlumberger Technology B.v. | 5298 |
1 |
| Panasonic Corporation | 19019 |
1 |
| Other owners | 36 |