- All sections
- C - Chemistry; metallurgy
- 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: 573
10-year publication summary
|
39
|
61
|
64
|
59
|
55
|
38
|
30
|
42
|
26
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17205 |
81 |
| Bridgestone Corporation | 7067 |
72 |
| Compagnie Generale des Etablissements Michelin | 4450 |
55 |
| The Yokohama Rubber Co., Ltd. | 3929 |
38 |
| Compagnie générale des établissements Michelin SCA | 2477 |
34 |
| Sumitomo Rubber Industries, Ltd. | 4421 |
24 |
| Eneos Materials Corporation | 141 |
16 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
15 |
| Michelin Recherche et Technique S.A. | 2328 |
14 |
| Zeon Corporation | 3854 |
11 |
| Sumitomo Chemical Company, Limited | 8808 |
9 |
| The Goodyear Tire & Rubber Company | 2569 |
8 |
| Arlanxeo Deutschland GmbH | 302 |
8 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
8 |
| Trinseo Europe GmbH | 317 |
8 |
| Centre National de La Recherche Scientifique | 9632 |
7 |
| Denka Company Limited | 2189 |
6 |
| Institut Polytechnique de Bordeaux | 356 |
6 |
| Universite de Bordeaux | 778 |
6 |
| JSR Corporation | 2476 |
5 |
| Other owners | 142 |