- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 33/52 - Use of compounds or compositions for colorimetric, spectrophotometric or fluorometric investigation, e.g. use of reagent paper
Patent holdings for IPC class G01N 33/52
Total number of patents in this class: 3216
10-year publication summary
|
233
|
245
|
226
|
193
|
214
|
207
|
173
|
167
|
146
|
73
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Regents of the University of California | 20778 |
46 |
| Roche Diabetes Care, Inc. | 1495 |
40 |
| F. Hoffmann-La Roche AG | 7819 |
36 |
| Siemens Healthcare Diagnostics Inc. | 2148 |
32 |
| Life Technologies Corporation | 3454 |
25 |
| Agency for Science, Technology and Research | 3736 |
23 |
| Massachusetts Institute of Technology | 10254 |
22 |
| The Johns Hopkins University | 5887 |
22 |
| Terumo Kabushiki Kaisha | 5815 |
21 |
| Purdue Research Foundation | 3921 |
20 |
| 3m Innovative Properties Company | 17481 |
18 |
| Becton, Dickinson and Company | 7573 |
18 |
| Sysmex Corporation | 1438 |
18 |
| 7905122 Canada Inc. | 30 |
17 |
| Kimberly-clark Worldwide, Inc. | 5305 |
16 |
| ARKRAY, Inc. | 854 |
16 |
| FUJIFILM Corporation | 30516 |
15 |
| Roche Diagnostics GmbH | 2690 |
14 |
| President and Fellows of Harvard College | 6092 |
14 |
| University of Florida Research Foundation, Inc. | 4179 |
14 |
| Other owners | 2769 |