- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 103/28 - Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
Patent holdings for IPC class C02F 103/28
Total number of patents in this class: 333
10-year publication summary
|
26
|
24
|
23
|
33
|
23
|
22
|
9
|
26
|
21
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1262 |
42 |
| Ecolab USA Inc. | 5831 |
16 |
| Omya International AG | 779 |
12 |
| UPM-Kymmene Corporation | 1007 |
9 |
| Solenis Technologies, L.P. | 304 |
8 |
| Voith Patent GmbH | 2740 |
7 |
| Meri Environmental Solutions GmbH | 42 |
6 |
| Spogen Biotech Inc. | 145 |
6 |
| Clean Chemistry, Inc. | 40 |
5 |
| Veolia Water Solutions & Technologies Support | 532 |
5 |
| Siemens AG | 23956 |
4 |
| Dow Global Technologies LLC | 11051 |
4 |
| Jiangnan University | 1643 |
4 |
| Kurita Water Industries Ltd. | 1294 |
4 |
| Nalco Company | 530 |
4 |
| Psmg, LLC | 21 |
4 |
| Microrganic Technologies Inc | 10 |
4 |
| Italmatch Chemicals GB Limited | 64 |
4 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48861 |
3 |
| Rohm and Haas Company | 2943 |
3 |
| Other owners | 179 |