- 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: 89
10-year publication summary
|
9
|
7
|
8
|
4
|
5
|
7
|
10
|
6
|
4
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17986 |
19 |
| Wacker Chemie AG | 2124 |
5 |
| Mitsui Mining & Smelting Co., Ltd. | 1062 |
3 |
| Merck Patent GmbH | 5751 |
2 |
| University of South Florida | 1913 |
2 |
| Cambridge Enterprise Limited | 1254 |
2 |
| DelSiTech Oy | 20 |
2 |
| Universite Paul Sabatier Toulouse III | 477 |
2 |
| SnG Inc. | 11 |
2 |
| Zhongke Runzi (Chongqing) Energy Saving Technology Co., Ltd | 9 |
2 |
| Thermulon Ltd | 3 |
2 |
| Mitsui Kinzoku Company, Limited | 521 |
2 |
| Centre National de La Recherche Scientifique | 11133 |
1 |
| Hitachi Chemical Company, Ltd. | 2219 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34623 |
1 |
| Konica Minolta, Inc. | 9201 |
1 |
| Daikin Industries, Ltd. | 10540 |
1 |
| The Trustees of Columbia University in the City of New York | 3663 |
1 |
| AGC Si-Tech Co., Ltd. | 71 |
1 |
| Aspen Systems, Inc. | 2 |
1 |
| Other owners | 36 |