- 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: 3182
10-year publication summary
|
192
|
203
|
218
|
203
|
177
|
197
|
195
|
150
|
159
|
122
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Regents of the University of California | 20268 |
45 |
| F. Hoffmann-La Roche AG | 7934 |
39 |
| Roche Diabetes Care, Inc. | 1493 |
38 |
| Siemens Healthcare Diagnostics Inc. | 2101 |
33 |
| Life Technologies Corporation | 3343 |
26 |
| Massachusetts Institute of Technology | 10130 |
24 |
| Agency for Science, Technology and Research | 3648 |
23 |
| The Johns Hopkins University | 5752 |
22 |
| Terumo Kabushiki Kaisha | 5632 |
22 |
| 3m Innovative Properties Company | 17737 |
20 |
| Becton, Dickinson and Company | 7415 |
19 |
| Purdue Research Foundation | 3721 |
19 |
| Sysmex Corporation | 1434 |
18 |
| Kimberly-clark Worldwide, Inc. | 5406 |
16 |
| ARKRAY, Inc. | 868 |
16 |
| 7905122 Canada Inc. | 26 |
15 |
| Roche Diagnostics GmbH | 2697 |
14 |
| President and Fellows of Harvard College | 6030 |
14 |
| University of Florida Research Foundation, Inc. | 4079 |
14 |
| Ascensia Diabetes Care Holdings AG | 602 |
14 |
| Other owners | 2731 |