- All sections
- C - Chemistry; metallurgy
- 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: 1877
10-year publication summary
|
181
|
163
|
194
|
204
|
176
|
164
|
172
|
143
|
147
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 12390 |
41 |
| DEKA Products Limited Partnership | 1702 |
40 |
| Veolia Water Technologies, Inc. | 82 |
33 |
| Gradiant Corporation | 129 |
32 |
| Massachusetts Institute of Technology | 9903 |
27 |
| Aramco Services Company | 3735 |
21 |
| Verno Holdings, LLC | 31 |
18 |
| Mitsubishi Heavy Industries, Ltd. | 8504 |
16 |
| Saltworks Technologies Inc. | 89 |
15 |
| Sasakura Engineering Co., Ltd. | 51 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 29567 |
13 |
| Heartland Water Technology, Inc. | 31 |
13 |
| Siemens AG | 24575 |
12 |
| XDI Holdings, LLC | 39 |
12 |
| AquaSource Technologies Corporation | 21 |
11 |
| Heartland Technology Partners LLC | 19 |
11 |
| King Fahd University of Petroleum and Minerals | 999 |
11 |
| Katz Water Tech, LLC | 29 |
11 |
| BASF SE | 20367 |
10 |
| LG Chem, Ltd. | 17620 |
10 |
| Other owners | 1506 |