- 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
|
24
|
27
|
28
|
10
|
12
|
13
|
5
|
8
|
5
|
4
|
| 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 | 2389 |
25 |
| Chevron U.S.A. Inc. | 4180 |
20 |
| BASF SE | 21334 |
16 |
| ExxonMobil Chemical Patents Inc. | 3756 |
16 |
| NGK Insulators, Ltd. | 5168 |
14 |
| IFP | 131 |
8 |
| Centre National de La Recherche Scientifique | 11133 |
7 |
| Saudi Arabian Oil Company | 14398 |
7 |
| ExxonMobil Technology and Engineering Company | 1425 |
7 |
| California Institute of Technology | 4044 |
6 |
| Dow Global Technologies LLC | 11072 |
6 |
| The Furukawa Electric Co., Ltd. | 3725 |
6 |
| Hitachi Zosen Corporation | 586 |
5 |
| Tokyo Institute of Technology | 1304 |
5 |
| China Petroleum & Chemical Corporation | 2190 |
4 |
| Kao Corporation | 5112 |
3 |
| National University Corporation Hokkaido University | 1385 |
3 |
| Research Institute of Petroleum Processing, Sinopec | 361 |
3 |
| The School Corporation Kansai University | 179 |
3 |
| Sentronic GmbH Gesellschaft fur optische Messsysteme | 21 |
3 |
| Other owners | 143 |