- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 33/152 - Preparation of hydrogels
Patent holdings for IPC class C01B 33/152
Total number of patents in this class: 85
10-year publication summary
|
6
|
9
|
7
|
8
|
4
|
5
|
7
|
10
|
6
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17644 |
17 |
| Mitsui Mining & Smelting Co., Ltd. | 1502 |
5 |
| Wacker Chemie AG | 2111 |
5 |
| Merck Patent GmbH | 5824 |
2 |
| University of South Florida | 1837 |
2 |
| Cambridge Enterprise Limited | 1191 |
2 |
| DelSiTech Oy | 17 |
2 |
| Universite Paul Sabatier Toulouse III | 476 |
2 |
| SnG Inc. | 12 |
2 |
| Zhongke Runzi (Chongqing) Energy Saving Technology Co., Ltd | 9 |
2 |
| Thermulon Ltd | 3 |
2 |
| Centre National de La Recherche Scientifique | 10516 |
1 |
| Hitachi Chemical Company, Ltd. | 2340 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 31806 |
1 |
| Konica Minolta, Inc. | 8784 |
1 |
| The Trustees of Columbia University in the City of New York | 3584 |
1 |
| AGC Si-Tech Co., Ltd. | 66 |
1 |
| Aspen Systems, Inc. | 2 |
1 |
| Contemporary Amperex Technology Co., Limited | 7083 |
1 |
| Diamet Corporation | 92 |
1 |
| Other owners | 33 |