- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 51/44 - SeparationPurificationStabilisationUse of additives by change of the physical state, e.g. crystallisation by distillation
Patent holdings for IPC class C07C 51/44
Total number of patents in this class: 660
10-year publication summary
|
78
|
57
|
57
|
53
|
40
|
38
|
26
|
36
|
28
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Celanese International Corporation | 911 |
81 |
| Daicel Corporation | 2353 |
75 |
| BASF SE | 20940 |
42 |
| LG Chem, Ltd. | 17635 |
42 |
| Arkema France | 4154 |
21 |
| Eastman Chemical Company | 2216 |
18 |
| LyondellBasell Acetyls, LLC | 95 |
18 |
| Nippon Shokubai Co., Ltd. | 1510 |
14 |
| Cargill, Incorporated | 2891 |
12 |
| Mitsubishi Chemical Corporation | 4525 |
11 |
| Tricoya Technologies Ltd | 40 |
10 |
| The Procter & Gamble Company | 22043 |
8 |
| BioAmber S.A.S. | 20 |
7 |
| Toray Industries, Inc. | 6950 |
6 |
| Neste Oyj | 789 |
6 |
| Novomer, Inc. | 212 |
6 |
| Solvay Acetow GmbH | 27 |
6 |
| INEOS Acetyls UK Limited | 56 |
6 |
| Naturamide IP LLC | 13 |
6 |
| DSM IP Assets B.V. | 5585 |
5 |
| Other owners | 260 |