- 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: 1810
10-year publication summary
190
|
181
|
163
|
194
|
204
|
175
|
162
|
171
|
141
|
51
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Saudi Arabian Oil Company | 11322 |
42 |
DEKA Products Limited Partnership | 1640 |
39 |
Gradiant Corporation | 123 |
33 |
Veolia Water Technologies, Inc. | 80 |
33 |
Massachusetts Institute of Technology | 9795 |
27 |
Aramco Services Company | 3504 |
21 |
Verno Holdings, LLC | 31 |
18 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
16 |
Heartland Water Technology, Inc. | 30 |
16 |
Saltworks Technologies Inc. | 87 |
15 |
Sasakura Engineering Co., Ltd. | 52 |
14 |
XDI Holdings, LLC | 68 |
14 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
13 |
Siemens AG | 24990 |
12 |
Heartland Technology Partners LLC | 20 |
12 |
AquaSource Technologies Corporation | 21 |
11 |
King Fahd University of Petroleum and Minerals | 779 |
11 |
Katz Water Tech, LLC | 28 |
11 |
BASF SE | 19740 |
10 |
BL Technologies, Inc. | 831 |
10 |
Other owners | 1432 |