- All sections
- C - Chemistrymetallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 5/21 - UreaDerivatives thereof, e.g. biuret
Patent holdings for IPC class C08K 5/21
Total number of patents in this class: 370
10-year publication summary
|
13
|
32
|
22
|
39
|
37
|
35
|
25
|
31
|
16
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30514 |
17 |
| BASF SE | 21303 |
13 |
| Mitsubishi Chemical Corporation | 4724 |
10 |
| Henkel AG & Co. KGaA | 10770 |
10 |
| BYK-Chemie GmbH | 447 |
10 |
| Huntsman International LLC | 694 |
10 |
| Bridgestone Corporation | 7259 |
7 |
| Allnex Netherlands B.V. | 189 |
7 |
| NEC Corporation | 37004 |
6 |
| Board of Regents, The University of Texas System | 6107 |
6 |
| PPG Industries Ohio, Inc. | 3332 |
6 |
| Axalta Coating Systems IP Co., LLC | 474 |
6 |
| Sika Technology AG | 3004 |
6 |
| Solvay Specialty Polymers Italy S.p.A. | 656 |
6 |
| Eneos Materials Corporation | 280 |
6 |
| Total Marketing Services | 449 |
5 |
| Rockwool A/S | 834 |
5 |
| Zeon Corporation | 4147 |
4 |
| SWIMC, LLC | 2578 |
4 |
| 3m Innovative Properties Company | 17478 |
3 |
| Other owners | 223 |