- 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: 257
10-year publication summary
|
27
|
34
|
18
|
25
|
16
|
19
|
13
|
10
|
11
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi High-Tech Corporation | 5241 |
24 |
| Sysmex Corporation | 1439 |
20 |
| Hitachi High-Technologies Corporation | 2004 |
10 |
| Kowa Company, Ltd. | 1195 |
7 |
| Chevron Phillips Chemical Company LP | 1833 |
5 |
| Halliburton Energy Services, Inc. | 20749 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10837 |
4 |
| InDevR, Inc. | 30 |
4 |
| Ortho-Clinical Diagnostics, Inc. | 257 |
4 |
| School Juridical person Higashi-nippon-gakuen | 15 |
4 |
| Sekisui Chemical Co., Ltd. | 3373 |
4 |
| Siemens Healthcare Diagnostics Inc. | 2043 |
4 |
| Roche Diagnostics Operations, Inc. | 1473 |
3 |
| Schlumberger Technology Corporation | 10627 |
3 |
| The General Hospital Corporation | 4704 |
3 |
| bioMerieux | 925 |
3 |
| ESI, Inc. | 18 |
3 |
| Trace-Ability, Inc. | 10 |
3 |
| Universitat Autonoma de Barcelona | 318 |
3 |
| Canon Medical Systems Corporation | 2232 |
3 |
| Other owners | 139 |