- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/78 - 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 change of colour
Patent holdings for IPC class G01N 21/78
Total number of patents in this class: 3625
10-year publication summary
|
257
|
265
|
275
|
269
|
333
|
321
|
266
|
233
|
220
|
36
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Terumo Kabushiki Kaisha | 5670 |
78 |
| Roche Diabetes Care, Inc. | 1491 |
62 |
| FUJIFILM Corporation | 30016 |
52 |
| F. Hoffmann-La Roche AG | 7881 |
43 |
| Hach Company | 432 |
42 |
| 3m Innovative Properties Company | 17607 |
37 |
| ARKRAY, Inc. | 871 |
36 |
| The University of Tokyo | 4288 |
36 |
| Ecolab USA Inc. | 5659 |
32 |
| Siemens Healthcare Diagnostics Inc. | 2124 |
27 |
| Olympus Corporation | 13060 |
23 |
| Konica Minolta Medical & Graphic, Inc. | 683 |
21 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10976 |
21 |
| Healthy.io Ltd | 81 |
21 |
| Honeywell International Inc. | 13566 |
18 |
| National Institute of Advanced Industrial Science and Technology | 3799 |
18 |
| Precision Planting LLC | 1155 |
18 |
| Sysmex Corporation | 1436 |
18 |
| The Regents of the University of California | 20366 |
17 |
| Roche Diabetes Care GmbH | 643 |
17 |
| Other owners | 2988 |