- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 33/141 - Preparation of hydrosols or aqueous dispersions
Patent holdings for IPC class C01B 33/141
Total number of patents in this class: 187
10-year publication summary
|
6
|
12
|
8
|
10
|
15
|
11
|
15
|
16
|
17
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fuso Chemical Co., Ltd. | 50 |
17 |
| JGC Catalysts and Chemicals Ltd. | 253 |
16 |
| Evonik Degussa GmbH | 1533 |
14 |
| LG Chem, Ltd. | 17620 |
13 |
| Nissan Chemical Industries, Ltd. | 1717 |
13 |
| Nissan Chemical Corporation | 2010 |
9 |
| Evonik Operations GmbH | 4095 |
8 |
| Fujimi Incorporated | 742 |
6 |
| Nalco Company | 563 |
5 |
| Mitsubishi Chemical Corporation | 4498 |
4 |
| Ecolab USA Inc. | 5478 |
4 |
| Saudi Arabian Oil Company | 13091 |
4 |
| Tama Chemicals Co., Ltd. | 7 |
4 |
| Nouryon Chemicals International B.V. | 607 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 5651 |
3 |
| JSR Corporation | 2514 |
3 |
| Halliburton Energy Services, Inc. | 20879 |
2 |
| Korea Institute of Science and Technology | 2115 |
2 |
| Analytical Nano Technologies Limited | 3 |
2 |
| Cabot Corporation | 551 |
2 |
| Other owners | 52 |