- All sections
- C - Chemistry; metallurgy
- C01B - Non-metallic elements; compounds thereof
- C01B 37/02 - Crystalline silica-polymorphs, e.g. silicalites
Patent holdings for IPC class C01B 37/02
Total number of patents in this class: 315
10-year publication summary
|
20
|
24
|
27
|
28
|
10
|
12
|
13
|
5
|
8
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ExxonMobil Research And Engineering Company | 2675 |
27 |
| Chevron U.S.A. Inc. | 3847 |
21 |
| BASF SE | 20387 |
17 |
| ExxonMobil Chemical Patents Inc. | 4117 |
17 |
| NGK Insulators, Ltd. | 4791 |
16 |
| IFP | 155 |
8 |
| Centre National de La Recherche Scientifique | 10068 |
6 |
| California Institute of Technology | 3929 |
6 |
| Dow Global Technologies LLC | 10143 |
6 |
| ExxonMobil Technology and Engineering Company | 905 |
6 |
| The Furukawa Electric Co., Ltd. | 3595 |
5 |
| Hitachi Zosen Corporation | 620 |
5 |
| Saudi Arabian Oil Company | 12404 |
5 |
| Tokyo Institute of Technology | 1389 |
5 |
| China Petroleum & Chemical Corporation | 1774 |
4 |
| Kao Corporation | 4903 |
3 |
| Agency for Science, Technology and Research | 3563 |
3 |
| Research Institute of Petroleum Processing, Sinopec | 383 |
3 |
| The School Corporation Kansai University | 160 |
3 |
| Sentronic GmbH Gesellschaft fur optische Messsysteme | 19 |
3 |
| Other owners | 146 |