- 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: 3181
10-year publication summary
192
|
203
|
218
|
203
|
177
|
197
|
193
|
150
|
159
|
100
|
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 | 19961 |
44 |
F. Hoffmann-La Roche AG | 7947 |
39 |
Roche Diabetes Care, Inc. | 1499 |
38 |
Siemens Healthcare Diagnostics Inc. | 2067 |
32 |
Life Technologies Corporation | 3306 |
26 |
Massachusetts Institute of Technology | 10062 |
24 |
Agency for Science, Technology and Research | 3628 |
23 |
Terumo Kabushiki Kaisha | 5549 |
22 |
Kimberly-clark Worldwide, Inc. | 5502 |
21 |
The Johns Hopkins University | 5675 |
21 |
3m Innovative Properties Company | 17823 |
20 |
Becton, Dickinson and Company | 7267 |
19 |
Purdue Research Foundation | 3629 |
18 |
Sysmex Corporation | 1433 |
18 |
ARKRAY, Inc. | 871 |
16 |
7905122 Canada Inc. | 26 |
15 |
Roche Diagnostics GmbH | 2701 |
14 |
President and Fellows of Harvard College | 5986 |
14 |
University of Florida Research Foundation, Inc. | 4035 |
14 |
Ascensia Diabetes Care Holdings AG | 600 |
14 |
Other owners | 2729 |