- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 7/52 - Grinding
Patent holdings for IPC class C04B 7/52
Total number of patents in this class: 296
10-year publication summary
|
12
|
28
|
17
|
29
|
20
|
18
|
18
|
31
|
24
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13956 |
34 |
| GCP Applied Technologies Inc. | 473 |
16 |
| Kao Corporation | 5056 |
10 |
| Sika Technology AG | 2963 |
10 |
| Tokuyama Corporation | 1464 |
9 |
| Hilti Aktiengesellschaft | 3625 |
8 |
| ThyssenKrupp AG | 3475 |
8 |
| Lafarge | 121 |
7 |
| Amrize Technology Switzerland LLC | 715 |
7 |
| Holcim Technology Ltd. | 474 |
6 |
| Roman Cement, LLC | 48 |
6 |
| Graymont Western Canada Inc. | 52 |
5 |
| thyssenkrupp Polysius GmbH | 155 |
5 |
| HeidelbergCement AG | 78 |
4 |
| Taiheiyo Cement Corporation | 241 |
4 |
| ThyssenKrupp Industrial Solutions AG | 630 |
4 |
| Cementos Argos S.A. | 37 |
3 |
| Construction Research & Technology GmbH | 614 |
3 |
| KHD Humboldt Wedag GmbH | 191 |
3 |
| Hunan University of Science and Technology | 68 |
3 |
| Other owners | 141 |