- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 33/04 - ClayKaolin
Patent holdings for IPC class C04B 33/04
Total number of patents in this class: 281
10-year publication summary
|
34
|
31
|
34
|
20
|
23
|
17
|
27
|
23
|
14
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| CARBO Ceramics Inc. | 176 |
16 |
| multiple Energy Technologies, LLC | 24 |
7 |
| Imertech SAS | 245 |
7 |
| Cosentino Research & Development, S.L. | 50 |
5 |
| Hüttenes-Albertus Chemische Werke GmbH | 149 |
4 |
| Imerys USA, Inc. | 137 |
4 |
| LG Hausys, Ltd. | 806 |
4 |
| CertainTeed LLC | 641 |
4 |
| Esan Eczacibasi Endustriyel Hammaddeler Sanayi ve Ticaret Anonim Sirketi | 11 |
4 |
| NGK Insulators, Ltd. | 5239 |
3 |
| Active Minerals International, LLC | 51 |
3 |
| Cuylits Holding GmbH | 23 |
3 |
| Delta Faucet Company | 2865 |
3 |
| Lamberti SpA | 258 |
3 |
| OCP S.A. | 88 |
3 |
| University of Wyoming | 388 |
3 |
| U.S. Silica Company | 112 |
3 |
| Narbon, S.L. | 4 |
3 |
| Tdh - GmbH Technischer Dämmstoffhandel | 8 |
3 |
| Harbour Stone B.V. | 6 |
3 |
| Other owners | 193 |