- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 7/02 - Portland cement
Patent holdings for IPC class C04B 7/02
Total number of patents in this class: 396
10-year publication summary
|
22
|
21
|
36
|
27
|
33
|
27
|
40
|
40
|
49
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20944 |
18 |
| Saudi Arabian Oil Company | 13349 |
16 |
| Holcim Technology Ltd. | 778 |
10 |
| Roman Cement, LLC | 48 |
9 |
| Tokuyama Corporation | 1405 |
8 |
| Greencraft LLC | 31 |
7 |
| Sika Technology AG | 2875 |
7 |
| CarbonCure Technologies Inc. | 88 |
6 |
| Solidia Technologies, Inc. | 89 |
6 |
| Taiheiyo Cement Corporation | 238 |
6 |
| Construction Research & Technology GmbH | 641 |
5 |
| Knauf Gips KG | 607 |
5 |
| Sumitomo Osaka Cement Co., Ltd. | 854 |
5 |
| William Marsh Rice University | 1022 |
5 |
| Hsustainability GmbH | 40 |
5 |
| Kao Corporation | 4979 |
4 |
| Calix Ltd | 93 |
4 |
| King Fahd University of Petroleum and Minerals | 1266 |
4 |
| Aalborg Portland A/S | 5 |
4 |
| Macrocement Industries Ltd. | 11 |
4 |
| Other owners | 258 |