- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 307/08 - Preparation of tetrahydrofuran
Patent holdings for IPC class C07D 307/08
Total number of patents in this class: 126
10-year publication summary
|
14
|
9
|
9
|
8
|
3
|
4
|
2
|
4
|
1
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21310 |
12 |
| Mitsubishi Chemical Corporation | 4724 |
11 |
| Shell Internationale Research Maatschappij B.V. | 3394 |
5 |
| Shell Oil Company | 2067 |
5 |
| Mitsubishi Rayon Co., Ltd. | 853 |
5 |
| Archer Daniels Midland Company | 1076 |
5 |
| Virent, Inc. | 145 |
4 |
| Shell USA, Inc. | 1340 |
4 |
| The Regents of the University of California | 20802 |
3 |
| E. I. du Pont de Nemours and Company | 3511 |
3 |
| BASF Corporation | 1682 |
3 |
| BioAmber International S.a.r.l. | 7 |
3 |
| CJ Cheiljedang Corporation | 3667 |
3 |
| INVISTA Technologies S.a.r.l. | 389 |
3 |
| Corteva Agriscience LLC | 2641 |
3 |
| BASF Japan Ltd. | 17 |
2 |
| BioAmber Inc. | 22 |
2 |
| Conser SpA | 17 |
2 |
| Council of Scientific & Industrial Research | 1448 |
2 |
| Daicel Corporation | 2542 |
2 |
| Other owners | 44 |