- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 11/145 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
Patent holdings for IPC class C02F 11/145
Total number of patents in this class: 49
10-year publication summary
|
0
|
4
|
5
|
9
|
10
|
9
|
5
|
8
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Graymont Western Canada Inc. | 50 |
14 |
| The Governors of the University of Alberta | 873 |
3 |
| RDP Technologies, Inc. | 34 |
3 |
| Heritage Research Group, LLC | 69 |
3 |
| Uop LLC | 4307 |
2 |
| Synata bio, Inc. | 77 |
2 |
| Alden Group Environmental Solutions, LLC | 2 |
2 |
| Donghua University | 80 |
1 |
| Evoqua Water Technologies LLC | 927 |
1 |
| Graymont (PA) Inc. | 18 |
1 |
| Jiangnan University | 1587 |
1 |
| Kyouzai Kogyo Co., Ltd. | 1 |
1 |
| LIXIL Corporation | 744 |
1 |
| OASE GmbH | 308 |
1 |
| Shanghai Yike Green Engineering Co., Ltd | 11 |
1 |
| Soll GmbH | 20 |
1 |
| Syncrude Canada Ltd. in Trust for The Owners of The Syncrude Project, AS such Owners Exist NOW and in The Future | 50 |
1 |
| Universidad de Murcia | 107 |
1 |
| Water Mark Technologies, Inc. | 4 |
1 |
| iGas energy GmbH | 17 |
1 |
| Other owners | 7 |