- 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
|
7
|
11
|
10
|
20
|
11
|
21
|
22
|
13
|
15
|
7
|
| 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 | 3792 |
11 |
| BYK-Chemie GmbH | 443 |
10 |
| JFE Mineral Company, Ltd. | 62 |
10 |
| Universite Paul Sabatier Toulouse III | 478 |
8 |
| Imertech SAS | 229 |
7 |
| Centre National de La Recherche Scientifique (cnrs) | 3122 |
6 |
| Kunimine Industries Co., Ltd. | 13 |
4 |
| Mizusawa Industrial Chemicals, Ltd. | 24 |
4 |
| Saudi Arabian Oil Company | 12911 |
4 |
| Murata Manufacturing Co., Ltd. | 24409 |
3 |
| Konica Minolta, Inc. | 8696 |
3 |
| Chevron U.S.A. Inc. | 3939 |
3 |
| Agency for Science, Technology and Research | 3602 |
3 |
| CARBO Ceramics Inc. | 237 |
3 |
| Tomoegawa Co., Ltd. | 244 |
3 |
| The Ginn Technology Group | 3 |
3 |
| LG Chem, Ltd. | 17581 |
2 |
| Centre National de La Recherche Scientifique | 10395 |
2 |
| BASF Corporation | 1717 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 31084 |
2 |
| Other owners | 125 |