- All sections
- C - Chemistry; metallurgy
- 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: 209
10-year publication summary
|
5
|
22
|
12
|
16
|
25
|
21
|
28
|
18
|
12
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7132 |
24 |
| Total Marketing Services | 485 |
15 |
| Otsuka Chemical Co., Ltd. | 289 |
12 |
| Polyplastics Co., Ltd. | 576 |
9 |
| Sumitomo Riko Company Limited | 1000 |
9 |
| PPG Industries Ohio, Inc. | 3410 |
7 |
| LG Chem, Ltd. | 17498 |
6 |
| Rohm and Haas Company | 2847 |
5 |
| BASF SE | 20146 |
4 |
| Dow Global Technologies LLC | 10297 |
3 |
| Michelin Recherche et Technique S.A. | 2272 |
3 |
| Asahi Kasei Chemicals Corporation | 758 |
3 |
| Sika Technology AG | 2796 |
3 |
| 3m Innovative Properties Company | 18119 |
2 |
| E. I. du Pont de Nemours and Company | 4308 |
2 |
| Honeywell International Inc. | 13715 |
2 |
| Sumitomo Electric Industries, Ltd. | 14583 |
2 |
| Hewlett-Packard Development Company, L.P. | 27650 |
2 |
| DSM IP Assets B.V. | 5843 |
2 |
| Adeka Corporation | 1339 |
2 |
| Other owners | 92 |