- All sections
- C - Chemistry; metallurgy
- C08L - Compositions of macromolecular compounds
- C08L 23/22 - Copolymers of isobutene; Butyl rubber
Patent holdings for IPC class C08L 23/22
Total number of patents in this class: 687
10-year publication summary
|
52
|
54
|
48
|
78
|
50
|
80
|
72
|
40
|
31
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ExxonMobil Chemical Patents Inc. | 4286 |
62 |
| Sumitomo Rubber Industries, Ltd. | 4421 |
32 |
| Arlanxeo Singapore Pte. Ltd. | 88 |
28 |
| Compagnie Generale des Etablissements Michelin | 4450 |
24 |
| The Yokohama Rubber Co., Ltd. | 3929 |
23 |
| LG Chem, Ltd. | 17205 |
20 |
| Bridgestone Corporation | 7067 |
20 |
| Michelin Recherche et Technique S.A. | 2328 |
19 |
| Lanxess Inc. | 42 |
14 |
| 3m Innovative Properties Company | 18406 |
13 |
| Bridgestone Americas Tire Operations, LLC | 990 |
10 |
| Sika Technology AG | 2650 |
10 |
| BASF South East Asia Pte. Ltd. | 10 |
9 |
| ARLANXEO Canada Inc. | 32 |
8 |
| The Goodyear Tire & Rubber Company | 2569 |
7 |
| Dow Global Technologies LLC | 10147 |
7 |
| The Furukawa Electric Co., Ltd. | 3486 |
7 |
| Basell Poliolefine Italia S.r.l. | 867 |
7 |
| DENSO-Holding GmbH & Co. | 96 |
7 |
| Emulco Laboratories C.v.b.a. | 10 |
7 |
| Other owners | 353 |