- 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: 3124
10-year publication summary
|
220
|
233
|
244
|
226
|
191
|
213
|
202
|
172
|
159
|
59
|
| 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 | 19784 |
42 |
| F. Hoffmann-La Roche AG | 7912 |
38 |
| Roche Diabetes Care, Inc. | 1495 |
37 |
| Siemens Healthcare Diagnostics Inc. | 2040 |
32 |
| Life Technologies Corporation | 3262 |
25 |
| Massachusetts Institute of Technology | 9984 |
24 |
| Agency for Science, Technology and Research | 3579 |
22 |
| Terumo Kabushiki Kaisha | 5487 |
22 |
| Kimberly-clark Worldwide, Inc. | 5501 |
21 |
| 3m Innovative Properties Company | 17848 |
20 |
| Becton, Dickinson and Company | 7214 |
20 |
| The Johns Hopkins University | 5628 |
20 |
| Purdue Research Foundation | 3557 |
18 |
| Sysmex Corporation | 1438 |
18 |
| 7905122 Canada Inc. | 26 |
16 |
| ARKRAY, Inc. | 877 |
16 |
| President and Fellows of Harvard College | 5935 |
14 |
| University of Florida Research Foundation, Inc. | 3975 |
14 |
| Ascensia Diabetes Care Holdings AG | 596 |
14 |
| National University of Singapore | 2419 |
14 |
| Other owners | 2677 |