- All sections
- C - Chemistry; metallurgy
- C04B - Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment of natural stone
- C04B 33/04 - Clay; Kaolin
Patent holdings for IPC class C04B 33/04
Total number of patents in this class: 270
10-year publication summary
|
19
|
34
|
31
|
34
|
20
|
23
|
18
|
27
|
23
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| CARBO Ceramics Inc. | 246 |
13 |
| Imerys USA, Inc. | 140 |
6 |
| multiple Energy Technologies, LLC | 26 |
6 |
| Cosentino Research & Development, S.L. | 34 |
5 |
| Hüttenes-Albertus Chemische Werke GmbH | 157 |
4 |
| LG Hausys, Ltd. | 828 |
4 |
| U.S. Silica Company | 101 |
4 |
| Imertech SAS | 224 |
4 |
| CertainTeed LLC | 550 |
4 |
| NGK Insulators, Ltd. | 4791 |
3 |
| Active Minerals International, LLC | 44 |
3 |
| Cuylits Holding GmbH | 22 |
3 |
| Delta Faucet Company | 2743 |
3 |
| Narbon, S.L. | 4 |
3 |
| Tdh - GmbH Technischer Dämmstoffhandel | 8 |
3 |
| Harbour Stone B.V. | 6 |
3 |
| Halliburton Energy Services, Inc. | 20411 |
2 |
| Hitachi Metals, Ltd. | 2026 |
2 |
| Baltic Ceramics S.A. | 3 |
2 |
| BASF Catalysts LLC | 143 |
2 |
| Other owners | 191 |