- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 1/20 - Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
Patent holdings for IPC class C02F 1/20
Total number of patents in this class: 1223
10-year publication summary
|
98
|
103
|
87
|
84
|
92
|
78
|
75
|
83
|
98
|
22
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kurita Water Industries Ltd. | 1246 |
50 |
| Evoqua Water Technologies LLC | 924 |
29 |
| Organo Corporation | 527 |
26 |
| Mitsubishi Heavy Industries, Ltd. | 8964 |
24 |
| Veolia Water Solutions & Technologies Support | 535 |
19 |
| Orege | 40 |
18 |
| Anaergia Inc. | 107 |
12 |
| Massachusetts Institute of Technology | 10183 |
10 |
| Saudi Arabian Oil Company | 13865 |
10 |
| Anschutz Exploration Corporation | 11 |
9 |
| Suez International | 360 |
9 |
| Heartland Water Technology, Inc. | 35 |
8 |
| Chevron U.S.A. Inc. | 4050 |
7 |
| Hitachi, Ltd. | 15819 |
6 |
| Bion Environmental Technologies, Inc. | 8 |
6 |
| Covestro Deutschland AG | 2795 |
6 |
| MKS Instruments, Inc. | 578 |
6 |
| Nomura Micro Science Co., Ltd. | 80 |
6 |
| Veolia Water Technologies, Inc. | 81 |
6 |
| Searen, LLC | 8 |
6 |
| Other owners | 950 |