- All sections
- C - Chemistrymetallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 5/31 - GuanidineDerivatives thereof
Patent holdings for IPC class C08K 5/31
Total number of patents in this class: 264
10-year publication summary
|
15
|
34
|
26
|
19
|
18
|
16
|
15
|
19
|
12
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7259 |
29 |
| Compagnie générale des établissements Michelin SCA | 2716 |
13 |
| The Yokohama Rubber Co., Ltd. | 4114 |
9 |
| Kaneka Corporation | 4703 |
8 |
| Evonik Operations GmbH | 4362 |
8 |
| Mitsubishi Gas Chemical Company, Inc. | 3622 |
7 |
| Unimatec Co., Ltd. | 238 |
7 |
| Bluestar Silicones France. | 64 |
6 |
| Lanxess Deutschland GmbH | 1139 |
6 |
| 3m Innovative Properties Company | 17478 |
5 |
| Compagnie Generale des Etablissements Michelin | 4970 |
5 |
| Eneos Materials Corporation | 280 |
5 |
| Dow Global Technologies LLC | 10944 |
4 |
| Michelin Recherche et Technique S.A. | 2084 |
4 |
| Lubrizol Advanced Materials, Inc. | 955 |
4 |
| ENEOS Corporation | 693 |
4 |
| LG Chem, Ltd. | 17921 |
3 |
| Shin-Etsu Chemical Co., Ltd. | 6096 |
3 |
| Henkel AG & Co. KGaA | 10770 |
3 |
| Agency for Science, Technology and Research | 3733 |
3 |
| Other owners | 128 |