- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 67/343 - Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisationPreparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by change of size of the carbon skeleton by increase in the number of carbon atoms
Patent holdings for IPC class C07C 67/343
Total number of patents in this class: 444
10-year publication summary
|
42
|
41
|
31
|
32
|
29
|
30
|
30
|
21
|
13
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Chemical UK Limited | 104 |
19 |
| Sumitomo Chemical Company, Limited | 9009 |
9 |
| Provivi, Inc. | 74 |
8 |
| Symrise AG | 1719 |
8 |
| Dow Global Technologies LLC | 10354 |
7 |
| Bayer Cropscience AG | 2062 |
6 |
| Daikin Industries, Ltd. | 9957 |
6 |
| Lucite International UK Limited | 49 |
6 |
| Corteva Agriscience LLC | 2659 |
6 |
| The Board of Trustees of the University of Illinois | 2683 |
5 |
| Celanese International Corporation | 907 |
5 |
| Central Glass Company, Limited | 1264 |
5 |
| Lotte Chemical Corporation | 719 |
5 |
| OptMed, Inc. | 21 |
5 |
| Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences | 170 |
5 |
| Ube Industries, Ltd. | 853 |
5 |
| United Therapeutics Corporation | 305 |
5 |
| BASF SE | 20777 |
4 |
| The Trustees of the University of Pennsylvania | 4308 |
4 |
| Henkel AG & Co. KGaA | 10451 |
4 |
| Other owners | 317 |