- All sections
- C - Chemistry; metallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 5/21 - Urea; Derivatives thereof, e.g. biuret
Patent holdings for IPC class C08K 5/21
Total number of patents in this class: 320
10-year publication summary
|
22
|
22
|
13
|
32
|
21
|
36
|
34
|
34
|
20
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 19740 |
13 |
| FUJIFILM Corporation | 27102 |
12 |
| Huntsman International LLC | 708 |
11 |
| BYK-Chemie GmbH | 437 |
9 |
| Total Marketing Services | 487 |
9 |
| Allnex Netherlands B.V. | 210 |
8 |
| Bridgestone Corporation | 7067 |
7 |
| Mitsubishi Chemical Corporation | 4313 |
7 |
| ENEOS Corporation | 611 |
7 |
| NEC Corporation | 32703 |
6 |
| Sika Technology AG | 2650 |
6 |
| Solvay Specialty Polymers Italy S.p.A. | 704 |
6 |
| Board of Regents, The University of Texas System | 5370 |
5 |
| Kaneka Corporation | 4445 |
5 |
| Axalta Coating Systems IP Co., LLC | 454 |
5 |
| Sorbonne Universite | 1068 |
5 |
| Toray Industries, Inc. | 6652 |
4 |
| Henkel AG & Co. KGaA | 10129 |
4 |
| Georgia-Pacific Chemicals LLC | 204 |
4 |
| LG Chem, Ltd. | 17205 |
3 |
| Other owners | 184 |