- 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
|
14
|
19
|
24
|
8
|
17
|
6
|
15
|
12
|
17
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13921 |
16 |
| China Petroleum & Chemical Corporation | 2015 |
15 |
| ExxonMobil Chemical Patents Inc. | 3879 |
9 |
| Research Institute of Petroleum Processing, Sinopec | 367 |
9 |
| NGK Insulators, Ltd. | 5201 |
7 |
| Korea Research Institute of Chemical Technology | 1438 |
7 |
| Tosoh Corporation | 1362 |
7 |
| SSI New Material (Zhenjiang) Co., Ltd. | 62 |
7 |
| BASF SE | 21131 |
6 |
| ExxonMobil Research And Engineering Company | 2490 |
5 |
| PetroChina Company Limited | 768 |
5 |
| The Regents of the University of California | 20473 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 33202 |
4 |
| Chevron U.S.A. Inc. | 4075 |
4 |
| Mitsubishi Chemical Corporation | 4688 |
4 |
| China National Petroleum Corporation | 514 |
4 |
| Industry-University Cooperation Foundation Sogang University | 194 |
4 |
| King Fahd University of Petroleum and Minerals | 1454 |
4 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1995 |
3 |
| Aramco Services Company | 4164 |
3 |
| Other owners | 131 |