- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 1/78 - Treatment of water, waste water, or sewage by oxidation with ozone
Patent holdings for IPC class C02F 1/78
Total number of patents in this class: 1507
10-year publication summary
|
116
|
155
|
139
|
150
|
125
|
139
|
133
|
98
|
83
|
42
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Biosecurity Technology, LLC | 40 |
30 |
| Mitsubishi Electric Corporation | 45328 |
24 |
| Chandler Systems, Inc. | 41 |
22 |
| Veolia Water Solutions & Technologies Support | 534 |
19 |
| Delta Faucet Company | 2733 |
15 |
| Sharp Kabushiki Kaisha | 18865 |
15 |
| Brisben Water Solutions LLC | 20 |
12 |
| Kurita Water Industries Ltd. | 1175 |
11 |
| Hydrozonix LLC | 31 |
10 |
| Metawater Co., Ltd. | 192 |
10 |
| S.I.P. Technologies L.L.C. | 15 |
10 |
| Tsinghua University | 5778 |
9 |
| OxyTec LLC | 10 |
9 |
| Hitachi, Ltd. | 15316 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 30429 |
8 |
| American Air Liquide, Inc. | 243 |
8 |
| AquaStar Pool Products, Inc. | 79 |
8 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3863 |
8 |
| Yantai United Ozonetec Corporation | 13 |
8 |
| Panasonic Corporation | 20226 |
7 |
| Other owners | 1256 |