- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/29 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection
Patent holdings for IPC class G01N 21/29
Total number of patents in this class: 308
10-year publication summary
|
13
|
14
|
30
|
21
|
27
|
25
|
37
|
19
|
25
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| F. Hoffmann-La Roche AG | 7941 |
6 |
| Unilever PLC | 3185 |
6 |
| Unilever N.V. | 3094 |
6 |
| Hindustan Unilever Limited | 1167 |
6 |
| LG Energy Solution, Ltd. | 15292 |
6 |
| 3m Innovative Properties Company | 17795 |
5 |
| Thermo Fisher Scientific Baltics UAB | 87 |
5 |
| Kimberly-clark Worldwide, Inc. | 5453 |
4 |
| The United States of America as represented by the Secretary of the Army | 1215 |
4 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1314 |
4 |
| Roche Diabetes Care, Inc. | 1504 |
4 |
| UPM-Kymmene Corporation | 938 |
4 |
| The Regents of the University of California | 20059 |
3 |
| Avery Dennison Corporation | 1184 |
3 |
| MFB Fertility, Inc. | 29 |
3 |
| Roche Diabetes Care GmbH | 629 |
3 |
| United Services Automobile Association (USAA) | 3032 |
3 |
| Guardian Glass, LLC | 572 |
3 |
| Trace Eye-D, LLC | 9 |
3 |
| Samsung Electronics Co., Ltd. | 147501 |
2 |
| Other owners | 225 |