- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 33/40 - Clays
Patent holdings for IPC class C01B 33/40
Total number of patents in this class: 229
10-year publication summary
|
11
|
10
|
20
|
11
|
21
|
22
|
13
|
16
|
14
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BYK-Chemie GmbH | 447 |
10 |
| JFE Mineral Company, Ltd. | 61 |
10 |
| Imertech SAS | 244 |
9 |
| National Institute of Advanced Industrial Science and Technology | 3791 |
8 |
| Universite Paul Sabatier Toulouse III | 478 |
8 |
| Centre National de La Recherche Scientifique (cnrs) | 3011 |
6 |
| Active Minerals International, LLC | 51 |
4 |
| CARBO Ceramics Inc. | 175 |
4 |
| Kunimine Industries Co., Ltd. | 13 |
4 |
| Saudi Arabian Oil Company | 14329 |
4 |
| Murata Manufacturing Co., Ltd. | 25847 |
3 |
| Konica Minolta, Inc. | 9159 |
3 |
| Chevron U.S.A. Inc. | 4162 |
3 |
| Agency for Science, Technology and Research | 3753 |
3 |
| Mizusawa Industrial Chemicals, Ltd. | 24 |
3 |
| JFE Mineral & Alloy Company,ltd. | 27 |
3 |
| The Ginn Technology Group | 3 |
3 |
| LG Chem, Ltd. | 17956 |
2 |
| Centre National de La Recherche Scientifique | 11077 |
2 |
| BASF Corporation | 1679 |
2 |
| Other owners | 135 |