- All sections
- C - Chemistrymetallurgy
- C08C - Treatment or chemical modification of rubbers
- C08C 19/44 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
Patent holdings for IPC class C08C 19/44
Total number of patents in this class: 425
10-year publication summary
|
36
|
39
|
55
|
33
|
18
|
21
|
5
|
6
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7147 |
80 |
| LG Chem, Ltd. | 17639 |
51 |
| Compagnie Generale des Etablissements Michelin | 4621 |
43 |
| Michelin Recherche et Technique S.A. | 2236 |
28 |
| Compagnie générale des établissements Michelin SCA | 2519 |
22 |
| Eneos Materials Corporation | 236 |
22 |
| Trinseo Europe GmbH | 327 |
17 |
| Arlanxeo Deutschland GmbH | 297 |
16 |
| Continental Reifen Deutschland GmbH | 2424 |
13 |
| Sumitomo Chemical Company, Limited | 8988 |
9 |
| The Yokohama Rubber Co., Ltd. | 3961 |
9 |
| Zeon Corporation | 3995 |
9 |
| Lanxess Deutschland GmbH | 1119 |
8 |
| Asahi Kasei Chemicals Corporation | 713 |
7 |
| Firestone Polymers, LLC | 28 |
6 |
| Korea Kumho Petrochemical Co., Ltd. | 185 |
5 |
| Styron Europe GmbH | 50 |
5 |
| Versalis S.P.A. | 539 |
5 |
| FINA Technology, Inc. | 547 |
4 |
| TSRC Corporation | 43 |
4 |
| Other owners | 62 |