- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 39/38 - Type ZSM-5
Patent holdings for IPC class C01B 39/38
Total number of patents in this class: 258
10-year publication summary
|
17
|
14
|
19
|
24
|
8
|
17
|
6
|
15
|
12
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13263 |
16 |
| China Petroleum & Chemical Corporation | 1903 |
14 |
| Research Institute of Petroleum Processing, Sinopec | 374 |
10 |
| NGK Insulators, Ltd. | 4973 |
9 |
| ExxonMobil Chemical Patents Inc. | 3976 |
9 |
| Korea Research Institute of Chemical Technology | 1394 |
7 |
| Tosoh Corporation | 1298 |
7 |
| SSI New Material (Zhenjiang) Co., Ltd. | 51 |
7 |
| BASF SE | 20945 |
6 |
| ExxonMobil Research And Engineering Company | 2568 |
5 |
| PetroChina Company Limited | 710 |
5 |
| The Regents of the University of California | 19989 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 31598 |
4 |
| Chevron U.S.A. Inc. | 3972 |
4 |
| Mitsubishi Chemical Corporation | 4526 |
4 |
| China National Petroleum Corporation | 451 |
4 |
| Industry-University Cooperation Foundation Sogang University | 193 |
4 |
| King Fahd University of Petroleum and Minerals | 1231 |
4 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1950 |
3 |
| Aramco Services Company | 3993 |
3 |
| Other owners | 129 |