- 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: 1167
10-year publication summary
|
87
|
98
|
102
|
87
|
84
|
92
|
75
|
75
|
82
|
60
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kurita Water Industries Ltd. | 1195 |
46 |
| Evoqua Water Technologies LLC | 917 |
26 |
| Mitsubishi Heavy Industries, Ltd. | 8752 |
24 |
| Organo Corporation | 472 |
24 |
| Veolia Water Solutions & Technologies Support | 535 |
19 |
| Orege | 37 |
18 |
| Anaergia Inc. | 108 |
13 |
| Massachusetts Institute of Technology | 10062 |
10 |
| Anschutz Exploration Corporation | 11 |
9 |
| Saudi Arabian Oil Company | 13224 |
8 |
| Heartland Water Technology, Inc. | 33 |
8 |
| Chevron U.S.A. Inc. | 3967 |
7 |
| Nomura Micro Science Co., Ltd. | 80 |
7 |
| Hitachi, Ltd. | 15513 |
6 |
| Bion Environmental Technologies, Inc. | 8 |
6 |
| Covestro Deutschland AG | 2760 |
6 |
| MKS Instruments, Inc. | 648 |
6 |
| Outset Medical, Inc. | 60 |
6 |
| Sylvan Source, Inc. | 27 |
6 |
| Veolia Water Technologies, Inc. | 78 |
6 |
| Other owners | 906 |