- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 21/04 - Inorganic materials containing phosphorus
Patent holdings for IPC class C09K 21/04
Total number of patents in this class: 304
10-year publication summary
|
22
|
23
|
18
|
35
|
25
|
21
|
38
|
13
|
13
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecochem International, naamloze vennootschap | 27 |
15 |
| Adeka Corporation | 1365 |
13 |
| Clariant International Ltd. | 932 |
12 |
| 3m Innovative Properties Company | 17770 |
10 |
| Perimeter Solutions LP, Perimeter Solutions Inc., a Delaware corporation | 90 |
8 |
| Sekisui Chemical Co., Ltd. | 3472 |
7 |
| Hilti Aktiengesellschaft | 3515 |
6 |
| X'aan Innovations Inc. | 7 |
5 |
| BASF SE | 21039 |
4 |
| Armstrong World Industries, Inc. | 351 |
4 |
| ElkCorp | 10 |
4 |
| Italmatch Chemicals SpA | 109 |
4 |
| Chestnut Springs LLC | 5 |
4 |
| Nitto Denko Corporation | 8344 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 32105 |
3 |
| Borealis AG | 2769 |
3 |
| Daihachi Chemical Industry Co., Ltd. | 60 |
3 |
| Koppers Performance Chemicals Inc. | 123 |
3 |
| Nichias Corporation | 393 |
3 |
| Perachem Limited | 18 |
3 |
| Other owners | 187 |