- 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: 2861
10-year publication summary
|
238
|
216
|
246
|
278
|
269
|
289
|
270
|
295
|
239
|
105
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hach Company | 403 |
99 |
| Saudi Arabian Oil Company | 11322 |
59 |
| Ecolab USA Inc. | 5190 |
54 |
| Hach Lange GmbH | 137 |
44 |
| Kurita Water Industries Ltd. | 1110 |
28 |
| Shimadzu Corporation | 5791 |
27 |
| BL Technologies, Inc. | 831 |
23 |
| Kemira Oyj | 1167 |
21 |
| Endress + Hauser Conducta GmbH + Co. KG | 292 |
18 |
| Horiba Advanced Techno, Co., Ltd. | 98 |
18 |
| Centre National de La Recherche Scientifique | 9632 |
17 |
| In-Situ, Inc. | 82 |
16 |
| LaMotte Chemical Products Company | 31 |
15 |
| Organo Corporation | 394 |
15 |
| Battelle Memorial Institute | 2356 |
14 |
| Aramco Services Company | 3504 |
14 |
| Mueller International, LLC | 694 |
14 |
| OndaVia, Inc. | 28 |
14 |
| ChemTreat, Inc. | 198 |
13 |
| Halliburton Energy Services, Inc. | 20165 |
11 |
| Other owners | 2327 |