- 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: 3185
10-year publication summary
|
192
|
203
|
218
|
203
|
177
|
197
|
195
|
150
|
159
|
125
|
| 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 | 20289 |
45 |
| F. Hoffmann-La Roche AG | 7933 |
39 |
| Roche Diabetes Care, Inc. | 1493 |
38 |
| Siemens Healthcare Diagnostics Inc. | 2103 |
33 |
| Life Technologies Corporation | 3346 |
26 |
| Massachusetts Institute of Technology | 10143 |
24 |
| Agency for Science, Technology and Research | 3646 |
23 |
| The Johns Hopkins University | 5751 |
22 |
| Terumo Kabushiki Kaisha | 5638 |
22 |
| 3m Innovative Properties Company | 17730 |
20 |
| Becton, Dickinson and Company | 7421 |
19 |
| Purdue Research Foundation | 3726 |
19 |
| Sysmex Corporation | 1436 |
18 |
| Kimberly-clark Worldwide, Inc. | 5409 |
16 |
| ARKRAY, Inc. | 868 |
16 |
| 7905122 Canada Inc. | 26 |
15 |
| Roche Diagnostics GmbH | 2696 |
14 |
| President and Fellows of Harvard College | 6036 |
14 |
| University of Florida Research Foundation, Inc. | 4084 |
14 |
| Ascensia Diabetes Care Holdings AG | 602 |
14 |
| Other owners | 2734 |