- 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: 277
10-year publication summary
|
10
|
12
|
28
|
17
|
29
|
20
|
17
|
17
|
30
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13155 |
34 |
| GCP Applied Technologies Inc. | 466 |
16 |
| Holcim Technology Ltd. | 989 |
13 |
| Kao Corporation | 4964 |
10 |
| Sika Technology AG | 2867 |
9 |
| Hilti Aktiengesellschaft | 3495 |
8 |
| Tokuyama Corporation | 1389 |
8 |
| Lafarge | 128 |
7 |
| Roman Cement, LLC | 47 |
6 |
| ThyssenKrupp AG | 3283 |
5 |
| Chryso | 126 |
4 |
| Graymont Western Canada Inc. | 43 |
4 |
| HeidelbergCement AG | 79 |
4 |
| LafargeHolcim Ltd | 21 |
4 |
| Taiheiyo Cement Corporation | 236 |
4 |
| ThyssenKrupp Industrial Solutions AG | 631 |
4 |
| Cementos Argos S.A. | 35 |
3 |
| Construction Research & Technology GmbH | 641 |
3 |
| KHD Humboldt Wedag GmbH | 190 |
3 |
| Hunan University of Science and Technology | 66 |
3 |
| Other owners | 125 |