- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 33/531 - Production of immunochemical test materials
Patent holdings for IPC class G01N 33/531
Total number of patents in this class: 721
10-year publication summary
|
41
|
53
|
54
|
57
|
35
|
61
|
52
|
54
|
35
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sekisui Medical Co., Ltd. | 651 |
35 |
| Denka Company Limited | 2459 |
19 |
| Tanaka Kikinzoku Kogyo K.K. | 589 |
11 |
| Denka Seiken Co., Ltd. | 88 |
10 |
| Fujirebio Inc. | 191 |
10 |
| FUJIFILM Corporation | 28805 |
8 |
| President and Fellows of Harvard College | 5913 |
8 |
| Kyowa Medex Co., Ltd. | 97 |
8 |
| NOK Corporation | 2166 |
8 |
| Ventana Medical Systems, Inc. | 1003 |
8 |
| Konica Minolta, Inc. | 8535 |
7 |
| Universitat de Valencia | 220 |
7 |
| F. Hoffmann-La Roche AG | 7942 |
6 |
| Becton, Dickinson and Company | 7071 |
6 |
| Sumitomo Chemical Company, Limited | 8988 |
6 |
| Bio-Rad Laboratories, Inc. | 1615 |
6 |
| Consejo Superior de Investigaciones Cientificas (csic) | 1320 |
6 |
| Shenzhen Yhlo Biotech Co., Ltd. | 75 |
6 |
| Siemens Healthcare Diagnostics Inc. | 2009 |
6 |
| The Regents of the University of California | 19517 |
5 |
| Other owners | 535 |