- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 39/44 - Ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
Patent holdings for IPC class C01B 39/44
Total number of patents in this class: 69
10-year publication summary
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2
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4
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5
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5
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5
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5
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3
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4
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5
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3
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tosoh Corporation | 1342 |
5 |
| SSI New Material (Zhenjiang) Co., Ltd. | 52 |
4 |
| INEOS Acetyls UK Limited | 55 |
4 |
| Chevron U.S.A. Inc. | 4018 |
3 |
| Johnson Matthey Public Limited Company | 1769 |
3 |
| Saudi Arabian Oil Company | 13716 |
3 |
| University of Houston System | 1103 |
3 |
| BP Chemicals Limited | 82 |
2 |
| China University of Petroleum (Beijing) | 292 |
2 |
| Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 682 |
2 |
| IFP Energies Nouvelles | 2985 |
2 |
| King Fahd University of Petroleum and Minerals | 1384 |
2 |
| PetroChina Company Limited | 732 |
2 |
| Total Research & Technology Feluy | 446 |
2 |
| BASF SE | 21137 |
1 |
| The Regents of the University of California | 20315 |
1 |
| BASF Corporation | 1709 |
1 |
| Hyundai Motor Company | 22888 |
1 |
| Shin-Etsu Chemical Co., Ltd. | 5807 |
1 |
| ExxonMobil Chemical Patents Inc. | 3933 |
1 |
| Other owners | 24 |