- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 7/34 - Hydraulic lime cementsRoman cements
Patent holdings for IPC class C04B 7/34
Total number of patents in this class: 143
10-year publication summary
|
15
|
19
|
12
|
19
|
13
|
6
|
3
|
16
|
12
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20891 |
14 |
| Graymont Western Canada Inc. | 43 |
6 |
| CarbonCure Technologies Inc. | 85 |
5 |
| James Hardie Technology Limited | 459 |
5 |
| Saudi Arabian Oil Company | 13155 |
5 |
| Arelac, Inc. | 102 |
5 |
| Roman Cement, LLC | 47 |
4 |
| United States Gypsum Company | 898 |
4 |
| CertainTeed Gypsum, Inc. | 207 |
3 |
| Sika Technology AG | 2867 |
3 |
| Sudbayerisches Portland-zementwerk Gebr. Wiesbock & Co. GmbH | 17 |
3 |
| Yildiz Teknik Universitesi | 159 |
3 |
| British Columbia Institute of Technology | 40 |
2 |
| Calix Ltd | 93 |
2 |
| D-Trace Investments, LLC | 8 |
2 |
| Knauf Insulation SPRL | 173 |
2 |
| Solidia Technologies, Inc. | 88 |
2 |
| Vesuvius USA Corporation | 92 |
2 |
| Eagle Strong Investments, LLC | 11 |
2 |
| Terra CO2 Technology Holdings, Inc. | 37 |
2 |
| Other owners | 67 |