- 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: 426
10-year publication summary
|
39
|
55
|
33
|
18
|
21
|
6
|
7
|
4
|
2
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7275 |
77 |
| LG Chem, Ltd. | 17978 |
51 |
| Compagnie Generale des Etablissements Michelin | 4983 |
43 |
| Michelin Recherche et Technique S.A. | 2076 |
28 |
| Compagnie générale des établissements Michelin SCA | 2759 |
23 |
| Eneos Materials Corporation | 291 |
21 |
| Arlanxeo Deutschland GmbH | 278 |
16 |
| Zeon Corporation | 4179 |
16 |
| Continental Reifen Deutschland GmbH | 2545 |
14 |
| The Yokohama Rubber Co., Ltd. | 4107 |
9 |
| Synthos Dwory 7 Spolka z organiczona odpowiedzialnoscia Spolka jawna (currently Synthos Dwory 7 Spolka z organiczona Odpowiedzialnoscia) | 20 |
9 |
| Lanxess Deutschland GmbH | 1150 |
8 |
| Trinseo Europe GmbH | 324 |
8 |
| Asahi Kasei Chemicals Corporation | 541 |
7 |
| Firestone Polymers, LLC | 23 |
6 |
| Korea Kumho Petrochemical Co., Ltd. | 194 |
5 |
| Styron Europe GmbH | 48 |
5 |
| Versalis S.P.A. | 529 |
5 |
| FINA Technology, Inc. | 476 |
4 |
| TSRC Corporation | 46 |
4 |
| Other owners | 67 |