- 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: 351
10-year publication summary
|
11
|
31
|
22
|
36
|
36
|
31
|
22
|
27
|
16
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30063 |
17 |
| BASF SE | 21146 |
13 |
| BYK-Chemie GmbH | 452 |
10 |
| Huntsman International LLC | 693 |
10 |
| Mitsubishi Chemical Corporation | 4671 |
9 |
| Bridgestone Corporation | 7234 |
7 |
| Henkel AG & Co. KGaA | 10699 |
7 |
| Allnex Netherlands B.V. | 191 |
7 |
| NEC Corporation | 36464 |
6 |
| Board of Regents, The University of Texas System | 6015 |
6 |
| PPG Industries Ohio, Inc. | 3384 |
6 |
| Axalta Coating Systems IP Co., LLC | 472 |
6 |
| Sika Technology AG | 2931 |
6 |
| Solvay Specialty Polymers Italy S.p.A. | 666 |
6 |
| Total Marketing Services | 448 |
5 |
| Eneos Materials Corporation | 279 |
5 |
| Zeon Corporation | 4125 |
4 |
| SWIMC, LLC | 2541 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 5878 |
3 |
| Daikin Industries, Ltd. | 10223 |
3 |
| Other owners | 211 |