- All sections
- C - Chemistry; metallurgy
- C01B - Non-metallic elements; compounds thereof
- C01B 33/143 - Preparation of hydrosols or aqueous dispersions by acidic treatment of silicates of aqueous solutions of silicates
Patent holdings for IPC class C01B 33/143
Total number of patents in this class: 84
10-year publication summary
|
7
|
4
|
2
|
5
|
2
|
8
|
5
|
6
|
4
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nouryon Chemicals International B.V. | 508 |
7 |
| JGC Catalysts and Chemicals Ltd. | 238 |
6 |
| Nissan Chemical Industries, Ltd. | 1822 |
6 |
| Merck Patent GmbH | 5909 |
4 |
| Evonik Degussa GmbH | 1574 |
4 |
| Ecolab USA Inc. | 5190 |
3 |
| Jisbrey, S.A | 4 |
3 |
| Nissan Chemical Corporation | 1725 |
3 |
| Evonik Operations GmbH | 3879 |
3 |
| Covestro (Netherlands) B.V. | 312 |
3 |
| LG Chem, Ltd. | 17205 |
2 |
| Aquarius Investholding, SARL | 3 |
2 |
| Rhodia Operations | 1645 |
2 |
| Saudi Arabian Oil Company | 11322 |
2 |
| BASF SE | 19740 |
1 |
| E. I. du Pont de Nemours and Company | 4345 |
1 |
| Eastman Kodak Company | 3444 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
1 |
| Agency for Science, Technology and Research | 3512 |
1 |
| Akzo Nobel Chemicals International B.V. | 520 |
1 |
| Other owners | 28 |