- 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: 313
10-year publication summary
|
20
|
23
|
27
|
26
|
7
|
12
|
11
|
5
|
8
|
3
|
| 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 | 2562 |
27 |
| Chevron U.S.A. Inc. | 3984 |
22 |
| BASF SE | 20979 |
17 |
| ExxonMobil Chemical Patents Inc. | 3976 |
17 |
| NGK Insulators, Ltd. | 5016 |
16 |
| IFP | 155 |
8 |
| Centre National de La Recherche Scientifique | 10516 |
6 |
| California Institute of Technology | 3985 |
6 |
| Dow Global Technologies LLC | 10402 |
6 |
| The Furukawa Electric Co., Ltd. | 3678 |
6 |
| Saudi Arabian Oil Company | 13349 |
6 |
| Hitachi Zosen Corporation | 615 |
5 |
| Tokyo Institute of Technology | 1365 |
5 |
| ExxonMobil Technology and Engineering Company | 1100 |
5 |
| China Petroleum & Chemical Corporation | 1908 |
4 |
| Kao Corporation | 4979 |
3 |
| National University Corporation Hokkaido University | 1345 |
3 |
| Research Institute of Petroleum Processing, Sinopec | 374 |
3 |
| The School Corporation Kansai University | 170 |
3 |
| Sentronic GmbH Gesellschaft fur optische Messsysteme | 21 |
3 |
| Other owners | 142 |