- All sections
- C - Chemistry; metallurgy
- C04B - Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment of natural stone
- C04B 7/52 - Grinding
Patent holdings for IPC class C04B 7/52
Total number of patents in this class: 256
10-year publication summary
|
10
|
12
|
28
|
17
|
29
|
20
|
17
|
17
|
30
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 12446 |
34 |
| Holcim Technology Ltd. | 995 |
16 |
| GCP Applied Technologies Inc. | 467 |
15 |
| Kao Corporation | 4916 |
10 |
| Lafarge | 133 |
9 |
| Hilti Aktiengesellschaft | 3383 |
8 |
| Sika Technology AG | 2851 |
8 |
| Roman Cement, LLC | 46 |
6 |
| Tokuyama Corporation | 1342 |
6 |
| ThyssenKrupp AG | 3207 |
5 |
| ThyssenKrupp Industrial Solutions AG | 690 |
5 |
| Chryso | 127 |
4 |
| HeidelbergCement AG | 82 |
4 |
| LafargeHolcim Ltd | 21 |
4 |
| Taiheiyo Cement Corporation | 237 |
4 |
| Cementos Argos S.A. | 25 |
3 |
| Construction Research & Technology GmbH | 650 |
3 |
| Graymont Western Canada Inc. | 38 |
3 |
| KHD Humboldt Wedag GmbH | 195 |
3 |
| China National Building Material Group Co., Ltd. | 64 |
3 |
| Other owners | 103 |