- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 33/18 - Water
Patent holdings for IPC class G01N 33/18
Total number of patents in this class: 3206
10-year publication summary
|
216
|
246
|
279
|
270
|
290
|
291
|
320
|
249
|
303
|
176
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hach Company | 421 |
109 |
| Saudi Arabian Oil Company | 13091 |
66 |
| Ecolab USA Inc. | 5478 |
57 |
| Hach Lange GmbH | 149 |
47 |
| Kurita Water Industries Ltd. | 1193 |
35 |
| Shimadzu Corporation | 6165 |
30 |
| Endress + Hauser Conducta GmbH + Co. KG | 347 |
24 |
| BL Technologies, Inc. | 834 |
23 |
| Kemira Oyj | 1206 |
22 |
| Horiba Advanced Techno, Co., Ltd. | 115 |
20 |
| Organo Corporation | 464 |
20 |
| Centre National de La Recherche Scientifique | 10421 |
18 |
| In-Situ, Inc. | 83 |
16 |
| LaMotte Chemical Products Company | 32 |
16 |
| Mueller International, LLC | 718 |
15 |
| OndaVia, Inc. | 29 |
15 |
| Battelle Memorial Institute | 2481 |
14 |
| Aramco Services Company | 3955 |
14 |
| ChemTreat, Inc. | 226 |
14 |
| Schlumberger Technology Corporation | 10705 |
12 |
| Other owners | 2619 |