- All sections
- C - Chemistry; metallurgy
- 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: 430
10-year publication summary
|
48
|
36
|
39
|
55
|
33
|
18
|
20
|
5
|
6
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7067 |
85 |
| LG Chem, Ltd. | 17205 |
51 |
| Compagnie Generale des Etablissements Michelin | 4450 |
42 |
| Michelin Recherche et Technique S.A. | 2328 |
28 |
| Compagnie générale des établissements Michelin SCA | 2477 |
21 |
| Eneos Materials Corporation | 141 |
19 |
| Arlanxeo Deutschland GmbH | 302 |
18 |
| Trinseo Europe GmbH | 317 |
17 |
| Continental Reifen Deutschland GmbH | 2324 |
13 |
| Sumitomo Chemical Company, Limited | 8808 |
9 |
| The Yokohama Rubber Co., Ltd. | 3929 |
9 |
| Zeon Corporation | 3854 |
9 |
| Lanxess Deutschland GmbH | 1104 |
8 |
| Asahi Kasei Chemicals Corporation | 809 |
7 |
| Firestone Polymers, LLC | 31 |
6 |
| Korea Kumho Petrochemical Co., Ltd. | 172 |
5 |
| Styron Europe GmbH | 50 |
5 |
| Versalis S.P.A. | 511 |
5 |
| FINA Technology, Inc. | 571 |
4 |
| TSRC Corporation | 39 |
4 |
| Other owners | 65 |