- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 20/02 - Treatment
Patent holdings for IPC class C04B 20/02
Total number of patents in this class: 569
10-year publication summary
|
12
|
21
|
19
|
28
|
30
|
28
|
77
|
82
|
79
|
73
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ThyssenKrupp AG | 3337 |
19 |
| thyssenkrupp Polysius GmbH | 173 |
19 |
| Terra CO2 Technology Holdings, Inc. | 39 |
17 |
| Sika Technology AG | 3034 |
15 |
| GCP Applied Technologies Inc. | 474 |
13 |
| SCHWENK Zement GmbH & Co. KG | 25 |
12 |
| Heidelberg Materials AG | 103 |
12 |
| Holcim Technology Ltd. | 494 |
11 |
| Hsustainability GmbH | 64 |
10 |
| Fives FCB | 66 |
9 |
| Vicat | 105 |
9 |
| Hconnect 2 GmbH | 33 |
9 |
| HeidelbergCement AG | 77 |
8 |
| Amrize Technology Switzerland LLC | 720 |
8 |
| Centre National de La Recherche Scientifique | 11143 |
7 |
| Roman Cement, LLC | 49 |
7 |
| Saudi Arabian Oil Company | 14416 |
7 |
| Etex Services NV | 64 |
7 |
| CarbonCure Technologies Inc. | 88 |
6 |
| Celitement GmbH & Co. KG | 6 |
6 |
| Other owners | 358 |