- 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: 218
10-year publication summary
|
6
|
9
|
10
|
19
|
11
|
20
|
21
|
12
|
14
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| National Institute of Advanced Industrial Science and Technology | 3789 |
10 |
| BYK-Chemie GmbH | 446 |
10 |
| JFE Mineral Company, Ltd. | 63 |
10 |
| Universite Paul Sabatier Toulouse III | 475 |
8 |
| Imertech SAS | 230 |
7 |
| Centre National de La Recherche Scientifique (cnrs) | 3107 |
6 |
| Kunimine Industries Co., Ltd. | 13 |
4 |
| Mizusawa Industrial Chemicals, Ltd. | 24 |
4 |
| Saudi Arabian Oil Company | 13224 |
4 |
| Murata Manufacturing Co., Ltd. | 24603 |
3 |
| Konica Minolta, Inc. | 8755 |
3 |
| Chevron U.S.A. Inc. | 3967 |
3 |
| Agency for Science, Technology and Research | 3628 |
3 |
| Active Minerals International, LLC | 46 |
3 |
| CARBO Ceramics Inc. | 235 |
3 |
| Tomoegawa Co., Ltd. | 243 |
3 |
| The Ginn Technology Group | 3 |
3 |
| LG Chem, Ltd. | 17635 |
2 |
| Centre National de La Recherche Scientifique | 10464 |
2 |
| BASF Corporation | 1716 |
2 |
| Other owners | 125 |