- All sections
- C - Chemistrymetallurgy
- C08C - Treatment or chemical modification of rubbers
- C08C 19/22 - Incorporating nitrogen atoms into the molecule
Patent holdings for IPC class C08C 19/22
Total number of patents in this class: 617
10-year publication summary
|
64
|
59
|
55
|
39
|
31
|
51
|
29
|
21
|
20
|
26
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 18005 |
100 |
| Bridgestone Corporation | 7283 |
80 |
| Compagnie Generale des Etablissements Michelin | 4995 |
59 |
| Compagnie générale des établissements Michelin SCA | 2756 |
38 |
| The Yokohama Rubber Co., Ltd. | 4126 |
37 |
| Sumitomo Rubber Industries, Ltd. | 4735 |
25 |
| Asahi Kasei Kabushiki Kaisha | 2876 |
16 |
| Eneos Materials Corporation | 289 |
16 |
| Zeon Corporation | 4183 |
15 |
| Michelin Recherche et Technique S.A. | 2066 |
14 |
| The Goodyear Tire & Rubber Company | 2379 |
9 |
| Arlanxeo Deutschland GmbH | 280 |
8 |
| Mitsubishi Gas Chemical Company, Inc. | 3663 |
8 |
| Denka Company Limited | 2779 |
6 |
| Pirelli Tyre S.p.A. | 1970 |
6 |
| Centre National de La Recherche Scientifique | 11164 |
5 |
| JSR Corporation | 2565 |
5 |
| Trinseo Europe GmbH | 327 |
5 |
| Sumitomo Chemical Company, Limited | 8992 |
4 |
| Bridgestone Americas Tire Operations, LLC | 1137 |
4 |
| Other owners | 157 |