- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 103/40 - Surface-active agents Dispersants
Patent holdings for IPC class C04B 103/40
Total number of patents in this class: 457
10-year publication summary
|
33
|
59
|
47
|
38
|
23
|
27
|
29
|
38
|
34
|
30
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 14235 |
49 |
| Sika Technology AG | 3004 |
45 |
| Halliburton Energy Services, Inc. | 21338 |
29 |
| Construction Research & Technology GmbH | 602 |
22 |
| Kao Corporation | 5076 |
21 |
| BASF SE | 21303 |
15 |
| Nippon Shokubai Co., Ltd. | 1538 |
13 |
| United States Gypsum Company | 927 |
8 |
| Schlumberger Technology Corporation | 11818 |
7 |
| Toho Chemical Industry Co., Ltd. | 31 |
7 |
| Sobute New Materials Co., Ltd. | 41 |
6 |
| Gold Bond Building Products, LLC | 195 |
6 |
| Centre National de La Recherche Scientifique | 11023 |
5 |
| Dow Global Technologies LLC | 10944 |
5 |
| CertainTeed Gypsum, Inc. | 220 |
5 |
| Knauf Gips KG | 642 |
5 |
| Nippon Paper Industries Co., Ltd. | 849 |
5 |
| Yoshino Gypsum Co., Ltd. | 264 |
4 |
| Rockwool A/S | 834 |
4 |
| Massachusetts Institute of Technology | 10251 |
3 |
| Other owners | 193 |