- All sections
- C - Chemistrymetallurgy
- C08J - Working-upgeneral processes of compoundingafter-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: 605
10-year publication summary
|
10
|
15
|
14
|
24
|
27
|
44
|
49
|
77
|
74
|
119
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7217 |
25 |
| Eastman Chemical Company | 2113 |
20 |
| Sumitomo Chemical Company, Limited | 9109 |
18 |
| Equistar Chemicals, LP | 351 |
14 |
| Basell Poliolefine Italia S.r.l. | 926 |
13 |
| GreenMantra Recycling Technologies Ltd. | 69 |
12 |
| Arkema France | 4176 |
11 |
| Tohoku University | 2849 |
11 |
| Covestro Deutschland AG | 2790 |
10 |
| INEOS Styrolution Group GmbH | 350 |
10 |
| The Japan Steel Works, Ltd. | 762 |
10 |
| SABIC Global Technologies B.V. | 4405 |
10 |
| Chevron U.S.A. Inc. | 4020 |
8 |
| ENEOS Corporation | 643 |
8 |
| National Institute of Advanced Industrial Science and Technology | 3798 |
7 |
| Microworks America, Inc. | 13 |
7 |
| Nippon Steel Corporation | 6514 |
6 |
| Sekisui Chemical Co., Ltd. | 3508 |
6 |
| BASF SE | 21098 |
5 |
| LG Chem, Ltd. | 17706 |
5 |
| Other owners | 389 |