- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 41/09 - Preparation of ethers by dehydration of compounds containing hydroxy groups
Patent holdings for IPC class C07C 41/09
Total number of patents in this class: 473
10-year publication summary
|
41
|
28
|
29
|
20
|
35
|
28
|
28
|
19
|
20
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BP p.l.c. | 509 |
20 |
| E. I. du Pont de Nemours and Company | 4116 |
17 |
| BASF SE | 20803 |
14 |
| Dow Global Technologies LLC | 10384 |
11 |
| BP Chemicals Limited | 93 |
11 |
| China Petroleum & Chemical Corporation | 1874 |
11 |
| BP (China) Holdings Limited | 35 |
10 |
| ExxonMobil Research And Engineering Company | 2590 |
9 |
| INEOS Acetyls UK Limited | 56 |
9 |
| University of Southern California | 2109 |
8 |
| Enerkem Inc. | 84 |
8 |
| Research Institute of Petroleum Processing, Sinopec | 371 |
8 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3937 |
7 |
| Petroleo Brasileiro S.A. - Petrobras | 831 |
6 |
| Linde GmbH | 1257 |
6 |
| Mitsubishi Heavy Industries, Ltd. | 8657 |
5 |
| ExxonMobil Chemical Patents Inc. | 4021 |
5 |
| Council of Scientific & Industrial Research | 1423 |
5 |
| Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 671 |
5 |
| IFP Energies Nouvelles | 2915 |
5 |
| Other owners | 293 |