- All sections
- C - Chemistry; metallurgy
- C08J - Working-up; general processes of compounding; after-treatment not covered by subclasses , , , or
- C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
Patent holdings for IPC class C08J 11/12
Total number of patents in this class: 403
10-year publication summary
|
11
|
10
|
17
|
16
|
25
|
31
|
57
|
57
|
78
|
27
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2239 |
19 |
| Equistar Chemicals, LP | 342 |
14 |
| GreenMantra Recycling Technologies Ltd. | 63 |
10 |
| INEOS Styrolution Group GmbH | 325 |
10 |
| Bridgestone Corporation | 7067 |
9 |
| Arkema France | 3790 |
9 |
| Basell Poliolefine Italia S.r.l. | 867 |
8 |
| Chevron U.S.A. Inc. | 3774 |
7 |
| Sumitomo Chemical Company, Limited | 8808 |
6 |
| SABIC Global Technologies B.V. | 4044 |
6 |
| Sekisui Chemical Co., Ltd. | 3159 |
6 |
| SK Microworks Co., Ltd. | 151 |
6 |
| Covestro Deutschland AG | 2429 |
5 |
| Res Polyflow LLC | 23 |
5 |
| Tohoku University | 2526 |
5 |
| Prti Global Management LLC. | 8 |
5 |
| Continental Reifen Deutschland GmbH | 2324 |
4 |
| Carbon Fiber Recycle Industry Ltd. | 4 |
4 |
| Milliken & Company | 1253 |
4 |
| Politecnico di Milano | 790 |
4 |
| Other owners | 257 |