- 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: 44
10-year publication summary
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0
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0
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4
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5
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9
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10
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9
|
5
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8
|
1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Graymont Western Canada Inc. | 44 |
12 |
| The Governors of the University of Alberta | 877 |
3 |
| RDP Technologies, Inc. | 34 |
3 |
| Heritage Research Group, LLC | 60 |
3 |
| Uop LLC | 4247 |
2 |
| Synata bio, Inc. | 80 |
2 |
| Alden Group Environmental Solutions, LLC | 2 |
2 |
| Evoqua Water Technologies LLC | 919 |
1 |
| Graymont (PA) Inc. | 18 |
1 |
| Jiangnan University | 1542 |
1 |
| Kyouzai Kogyo Co., Ltd. | 2 |
1 |
| LIXIL Corporation | 715 |
1 |
| OASE GmbH | 322 |
1 |
| Soll GmbH | 21 |
1 |
| Syncrude Canada Ltd. in Trust for The Owners of The Syncrude Project, AS such Owners Exist NOW and in The Future | 44 |
1 |
| Universidad de Murcia | 104 |
1 |
| Water Mark Technologies, Inc. | 4 |
1 |
| iGas energy GmbH | 18 |
1 |
| Ash Management Engineering, Inc. | 4 |
1 |
| Hydromecanique et Frottement | 113 |
1 |
| Other owners | 4 |