- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 21/12 - Organic materials containing phosphorus
Patent holdings for IPC class C09K 21/12
Total number of patents in this class: 689
10-year publication summary
|
45
|
59
|
67
|
59
|
48
|
61
|
50
|
37
|
30
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Adeka Corporation | 1342 |
43 |
| Clariant Finance (BVI) Limited | 403 |
30 |
| Daihachi Chemical Industry Co., Ltd. | 62 |
25 |
| BASF SE | 20432 |
21 |
| Clariant International Ltd. | 954 |
18 |
| ICL-IP America Inc. | 140 |
17 |
| International Business Machines Corporation | 60129 |
13 |
| Bromine Compounds Ltd. | 187 |
12 |
| E. I. du Pont de Nemours and Company | 4249 |
9 |
| Lanxess Deutschland GmbH | 1119 |
9 |
| SABIC Global Technologies B.V. | 4203 |
9 |
| Albemarle Corporation | 511 |
7 |
| Ecochem International, naamloze vennootschap | 22 |
7 |
| Clariant Plastics & Coatings Ltd | 83 |
7 |
| Dow Global Technologies LLC | 10156 |
6 |
| Aspen Aerogels, Inc. | 243 |
6 |
| Lanxess Corporation | 261 |
6 |
| Nippon Kayaku Kabushiki Kaisha | 1429 |
6 |
| Otsuka Chemical Co., Ltd. | 286 |
6 |
| Sekisui Chemical Co., Ltd. | 3308 |
6 |
| Other owners | 426 |