- All sections
- C - Chemistrymetallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
Patent holdings for IPC class C02F 1/04
Total number of patents in this class: 1922
10-year publication summary
|
181
|
163
|
194
|
204
|
176
|
165
|
175
|
150
|
151
|
69
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 12997 |
43 |
| DEKA Products Limited Partnership | 1763 |
40 |
| Veolia Water Technologies, Inc. | 77 |
33 |
| Gradiant Corporation | 129 |
31 |
| Massachusetts Institute of Technology | 10036 |
27 |
| Aramco Services Company | 3936 |
22 |
| Verno Holdings, LLC | 31 |
18 |
| Mitsubishi Heavy Industries, Ltd. | 8694 |
16 |
| Saltworks Technologies Inc. | 92 |
14 |
| Sasakura Engineering Co., Ltd. | 51 |
14 |
| Heartland Water Technology, Inc. | 31 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 31221 |
13 |
| King Fahd University of Petroleum and Minerals | 1170 |
13 |
| Siemens AG | 24520 |
12 |
| Katz Water Tech, LLC | 30 |
12 |
| AquaSource Technologies Corporation | 21 |
11 |
| Heartland Technology Partners LLC | 19 |
11 |
| XDI Holdings, LLC | 38 |
11 |
| BASF SE | 20904 |
10 |
| LG Chem, Ltd. | 17598 |
10 |
| Other owners | 1547 |