- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds 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: 310
10-year publication summary
|
23
|
27
|
26
|
7
|
12
|
11
|
5
|
8
|
5
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ExxonMobil Research And Engineering Company | 2497 |
27 |
| Chevron U.S.A. Inc. | 4048 |
20 |
| ExxonMobil Chemical Patents Inc. | 3887 |
17 |
| BASF SE | 21134 |
16 |
| NGK Insulators, Ltd. | 5205 |
14 |
| IFP | 154 |
8 |
| Centre National de La Recherche Scientifique | 10805 |
6 |
| California Institute of Technology | 4010 |
6 |
| Dow Global Technologies LLC | 10701 |
6 |
| The Furukawa Electric Co., Ltd. | 3710 |
6 |
| Saudi Arabian Oil Company | 13857 |
6 |
| ExxonMobil Technology and Engineering Company | 1236 |
6 |
| Hitachi Zosen Corporation | 613 |
5 |
| Tokyo Institute of Technology | 1346 |
5 |
| China Petroleum & Chemical Corporation | 1997 |
4 |
| Kao Corporation | 5027 |
3 |
| National University Corporation Hokkaido University | 1347 |
3 |
| Research Institute of Petroleum Processing, Sinopec | 368 |
3 |
| The School Corporation Kansai University | 174 |
3 |
| Sentronic GmbH Gesellschaft fur optische Messsysteme | 21 |
3 |
| Other owners | 143 |