- 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: 421
10-year publication summary
|
23
|
40
|
27
|
35
|
34
|
43
|
44
|
51
|
29
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21257 |
18 |
| Saudi Arabian Oil Company | 13956 |
17 |
| Roman Cement, LLC | 48 |
10 |
| Tokuyama Corporation | 1464 |
8 |
| Amrize Technology Switzerland LLC | 715 |
8 |
| Greencraft LLC | 33 |
7 |
| Sika Technology AG | 2963 |
7 |
| Solidia Technologies, Inc. | 79 |
7 |
| Taiheiyo Cement Corporation | 241 |
7 |
| CarbonCure Technologies Inc. | 87 |
6 |
| Calix Ltd | 90 |
5 |
| Construction Research & Technology GmbH | 614 |
5 |
| Knauf Gips KG | 635 |
5 |
| Sumitomo Osaka Cement Co., Ltd. | 886 |
5 |
| William Marsh Rice University | 1058 |
5 |
| Hsustainability GmbH | 58 |
5 |
| Kao Corporation | 5056 |
4 |
| Dow Global Technologies LLC | 10845 |
4 |
| King Fahd University of Petroleum and Minerals | 1524 |
4 |
| Aalborg Portland A/S | 5 |
4 |
| Other owners | 280 |