- All sections
- C - Chemistrymetallurgy
- C08J - Working-upgeneral processes of compoundingafter-treatment not covered by subclasses , , , or
- C08J 11/28 - 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 treatment with organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
Patent holdings for IPC class C08J 11/28
Total number of patents in this class: 446
10-year publication summary
|
8
|
14
|
16
|
12
|
14
|
34
|
48
|
64
|
69
|
75
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21334 |
29 |
| Evonik Operations GmbH | 4447 |
24 |
| Covestro Deutschland AG | 2856 |
10 |
| Mitsubishi Chemical Corporation | 4777 |
9 |
| Ioniqa Technologies B.V. | 43 |
9 |
| LG Chem, Ltd. | 17997 |
8 |
| The Regents of the University of California | 20987 |
7 |
| Carl Zeiss Vision International GmbH | 703 |
7 |
| Nan Ya Plastics Corporation | 507 |
7 |
| Swancor Innovation & Incubation Co., Ltd. | 21 |
7 |
| The Boeing Company | 20232 |
6 |
| Taclov, LLC | 17 |
6 |
| National Technology & Engineering Solutions of Sandia, LLC | 1959 |
5 |
| Centre National de La Recherche Scientifique | 11143 |
4 |
| Bridgestone Corporation | 7283 |
4 |
| Continental Reifen Deutschland GmbH | 2551 |
4 |
| Agency for Science, Technology and Research | 3785 |
4 |
| Lehigh Technologies, Inc. | 23 |
4 |
| UT-Battelle, LLC | 1544 |
4 |
| Carl Zeiss Vision Technical Services Guangzhou Ltd. | 29 |
4 |
| Other owners | 284 |