- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/80 - Indicating pH value
Patent holdings for IPC class G01N 21/80
Total number of patents in this class: 455
10-year publication summary
|
46
|
37
|
40
|
40
|
48
|
47
|
40
|
36
|
32
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Precision Planting LLC | 1103 |
11 |
| Ecolab USA Inc. | 5439 |
9 |
| Kimberly-clark Worldwide, Inc. | 5501 |
8 |
| Hach Company | 417 |
7 |
| Smith & Nephew plc | 773 |
6 |
| Samsung Electronics Co., Ltd. | 143555 |
5 |
| Centre National de La Recherche Scientifique | 10284 |
5 |
| Becton, Dickinson and Company | 7214 |
5 |
| bioMerieux, Inc. | 433 |
5 |
| Endress + Hauser Conducta GmbH + Co. KG | 338 |
5 |
| Spogen Biotech Inc. | 131 |
5 |
| Healthy.io Ltd | 80 |
5 |
| Mozarc Medical US LLC | 331 |
5 |
| International Business Machines Corporation | 60806 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10810 |
4 |
| Bonraybio Co., Ltd. | 45 |
4 |
| Finesse Solutions, Inc. | 57 |
4 |
| The University of Tokyo | 4131 |
4 |
| Modine LLC | 51 |
4 |
| Halliburton Energy Services, Inc. | 20697 |
3 |
| Other owners | 347 |