- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 5/00 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
Patent holdings for IPC class C02F 5/00
Total number of patents in this class: 549
10-year publication summary
|
60
|
33
|
55
|
30
|
45
|
24
|
41
|
27
|
33
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kurita Water Industries Ltd. | 1110 |
61 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
21 |
| Ecolab USA Inc. | 5190 |
18 |
| Mitsubishi Electric Corporation | 43934 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
11 |
| Culligan International Company | 141 |
10 |
| Fuji Electric Co., Ltd. | 4750 |
9 |
| Daikin Industries, Ltd. | 9495 |
7 |
| Nippon Shokubai Co., Ltd. | 1487 |
7 |
| UNGER Marketing International, LLC | 304 |
7 |
| General Electric Company | 18133 |
6 |
| Judo Wasseraufbereitung GmbH | 126 |
6 |
| Terralithium LLC | 52 |
6 |
| Chandler Systems, Inc. | 39 |
5 |
| Franklin Electric Co., Inc. | 217 |
5 |
| Midea Group Co., Ltd. | 4025 |
5 |
| Miura Co., Ltd. | 287 |
5 |
| Nalco Company | 620 |
5 |
| Semb-eco R&D Pte Ltd | 10 |
5 |
| BASF SE | 19740 |
4 |
| Other owners | 335 |