- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 103/30 - Water reducers, plasticisers, air-entrainers
Patent holdings for IPC class C04B 103/30
Total number of patents in this class: 357
10-year publication summary
|
14
|
22
|
24
|
31
|
22
|
28
|
37
|
23
|
50
|
43
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sika Technology AG | 2867 |
30 |
| Kzj New Materials Group Co., Ltd. | 52 |
22 |
| Construction Research & Technology GmbH | 641 |
13 |
| Sobute New Materials Co., Ltd. | 37 |
9 |
| Nippon Shokubai Co., Ltd. | 1507 |
8 |
| GCP Applied Technologies Inc. | 466 |
7 |
| Holcim Technology Ltd. | 989 |
7 |
| Kao Corporation | 4964 |
6 |
| Hilti Aktiengesellschaft | 3495 |
6 |
| Chryso | 126 |
6 |
| Nanjing Bote New Materials Co, Ltd | 12 |
6 |
| École Normale Superieure Paris-saclay | 60 |
6 |
| Centre National de La Recherche Scientifique | 10418 |
5 |
| Korea Institute of Civil Engineering and Building Technology | 134 |
5 |
| Ecocem Materials Ltd. | 41 |
5 |
| Bote Building Materials (Tianjin) Co., Ltd | 10 |
4 |
| Toho Chemical Industry Co., Ltd. | 31 |
4 |
| United States Gypsum Company | 898 |
4 |
| Shijiazhuang ChangAn YuCai Building Materials Co., Ltd. | 11 |
4 |
| Sichuan Tongdao Technology Co. Ltd | 10 |
4 |
| Other owners | 196 |