- 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: 3078
10-year publication summary
233
|
220
|
233
|
244
|
226
|
189
|
203
|
196
|
153
|
45
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
The Regents of the University of California | 18943 |
44 |
F. Hoffmann-La Roche AG | 7958 |
36 |
Roche Diabetes Care, Inc. | 1492 |
36 |
Siemens Healthcare Diagnostics Inc. | 1946 |
29 |
Kimberly-clark Worldwide, Inc. | 5854 |
27 |
Massachusetts Institute of Technology | 9795 |
24 |
Life Technologies Corporation | 3068 |
24 |
Agency for Science, Technology and Research | 3512 |
22 |
Terumo Kabushiki Kaisha | 5216 |
21 |
3m Innovative Properties Company | 18406 |
20 |
Becton, Dickinson and Company | 6712 |
19 |
The Johns Hopkins University | 5377 |
19 |
Purdue Research Foundation | 3277 |
18 |
Sysmex Corporation | 1418 |
18 |
Polymer Technology Systems, Inc. | 169 |
16 |
Roche Diagnostics GmbH | 2745 |
15 |
FUJIFILM Corporation | 27102 |
15 |
University of Florida Research Foundation, Inc. | 3883 |
15 |
President and Fellows of Harvard College | 5792 |
14 |
ARKRAY, Inc. | 844 |
14 |
Other owners | 2632 |