- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/82 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a precipitate or turbidity
Patent holdings for IPC class G01N 21/82
Total number of patents in this class: 244
10-year publication summary
|
20
|
27
|
34
|
18
|
24
|
15
|
18
|
12
|
9
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi High-Tech Corporation | 4424 |
22 |
| Sysmex Corporation | 1418 |
20 |
| Hitachi High-Technologies Corporation | 2034 |
10 |
| Kowa Company, Ltd. | 1172 |
7 |
| Chevron Phillips Chemical Company LP | 1779 |
5 |
| Halliburton Energy Services, Inc. | 20165 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
4 |
| InDevR, Inc. | 30 |
4 |
| Ortho-Clinical Diagnostics, Inc. | 191 |
4 |
| School Juridical person Higashi-nippon-gakuen | 15 |
4 |
| Sekisui Chemical Co., Ltd. | 3159 |
4 |
| Siemens Healthcare Diagnostics Inc. | 1946 |
4 |
| Roche Diagnostics Operations, Inc. | 1375 |
3 |
| Schlumberger Technology Corporation | 9690 |
3 |
| bioMerieux | 917 |
3 |
| Trace-Ability, Inc. | 10 |
3 |
| Universitat Autonoma de Barcelona | 298 |
3 |
| Canon Medical Systems Corporation | 1922 |
3 |
| The Regents of the University of California | 18943 |
2 |
| Toshiba Medical Systems Corporation | 2236 |
2 |
| Other owners | 130 |