- 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: 679
10-year publication summary
|
44
|
45
|
59
|
67
|
59
|
48
|
60
|
49
|
36
|
12
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Adeka Corporation | 1333 |
41 |
| Clariant Finance (BVI) Limited | 427 |
30 |
| Daihachi Chemical Industry Co., Ltd. | 63 |
25 |
| BASF SE | 19740 |
21 |
| International Business Machines Corporation | 60644 |
19 |
| Clariant International Ltd. | 978 |
19 |
| ICL-IP America Inc. | 136 |
16 |
| Bromine Compounds Ltd. | 196 |
12 |
| E. I. du Pont de Nemours and Company | 4345 |
9 |
| Lanxess Deutschland GmbH | 1104 |
9 |
| SABIC Global Technologies B.V. | 4044 |
9 |
| Clariant Plastics & Coatings Ltd | 85 |
8 |
| Dow Global Technologies LLC | 10147 |
7 |
| Albemarle Corporation | 514 |
7 |
| Ecochem International, naamloze vennootschap | 21 |
7 |
| Otsuka Chemical Co., Ltd. | 286 |
7 |
| Lanxess Corporation | 172 |
6 |
| Nippon Kayaku Kabushiki Kaisha | 1400 |
6 |
| Sekisui Chemical Co., Ltd. | 3159 |
6 |
| Aspen Aerogels, Inc. | 217 |
5 |
| Other owners | 410 |