- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 111/40 - Porous or lightweight materials
Patent holdings for IPC class C04B 111/40
Total number of patents in this class: 225
10-year publication summary
|
13
|
21
|
24
|
28
|
15
|
20
|
17
|
20
|
24
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Holcim Technology Ltd. | 778 |
10 |
| Sebastos Technologies Inc. | 11 |
7 |
| The Intellectual Gorilla GmbH | 29 |
6 |
| United States Gypsum Company | 907 |
6 |
| Bautex Systems, LLC | 7 |
5 |
| James Hardie Technology Limited | 459 |
5 |
| Sika Technology AG | 2875 |
5 |
| Southeast University | 1433 |
5 |
| CertainTeed Gypsum, Inc. | 209 |
4 |
| King Fahd University of Petroleum and Minerals | 1266 |
4 |
| Shandong University | 1053 |
4 |
| Beijing New Building Materials Public Limited Company | 98 |
4 |
| Halliburton Energy Services, Inc. | 20944 |
3 |
| Centre National de La Recherche Scientifique | 10516 |
3 |
| Massachusetts Institute of Technology | 10102 |
3 |
| Saudi Arabian Oil Company | 13349 |
3 |
| Shenzhen University | 1650 |
3 |
| Universite de Bordeaux | 866 |
3 |
| Hubei Changyao New Materials Co., Ltd. | 5 |
3 |
| Schlumberger Technology Corporation | 10868 |
2 |
| Other owners | 137 |