- All sections
- C - Chemistrymetallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 5/25 - Carboxylic acid hydrazides
Patent holdings for IPC class C08K 5/25
Total number of patents in this class: 222
10-year publication summary
|
22
|
12
|
16
|
25
|
21
|
28
|
17
|
12
|
13
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7200 |
24 |
| Total Marketing Services | 476 |
14 |
| Otsuka Chemical Co., Ltd. | 287 |
13 |
| Polyplastics Co., Ltd. | 601 |
9 |
| Sumitomo Riko Company Limited | 1044 |
9 |
| PPG Industries Ohio, Inc. | 3419 |
7 |
| LG Chem, Ltd. | 17526 |
6 |
| Rohm and Haas Company | 2895 |
6 |
| BASF SE | 20694 |
5 |
| Dow Global Technologies LLC | 10315 |
4 |
| Michelin Recherche et Technique S.A. | 2207 |
3 |
| Asahi Kasei Chemicals Corporation | 687 |
3 |
| Denka Company Limited | 2524 |
3 |
| Sika Technology AG | 2836 |
3 |
| Dow Silicones Corporation | 1876 |
3 |
| 3m Innovative Properties Company | 17856 |
2 |
| E. I. du Pont de Nemours and Company | 4137 |
2 |
| Honeywell International Inc. | 13582 |
2 |
| Sumitomo Electric Industries, Ltd. | 15277 |
2 |
| DSM IP Assets B.V. | 5672 |
2 |
| Other owners | 100 |