- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
Patent holdings for IPC class G01N 21/27
Total number of patents in this class: 3860
10-year publication summary
|
298
|
305
|
353
|
348
|
282
|
285
|
251
|
233
|
155
|
181
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Konica Minolta, Inc. | 8902 |
73 |
| Panasonic Intellectual Property Management Co., Ltd. | 32457 |
69 |
| Halliburton Energy Services, Inc. | 21078 |
52 |
| Hitachi High-Tech Corporation | 5468 |
49 |
| Olympus Corporation | 13094 |
45 |
| Sony Corporation | 30787 |
44 |
| FUJIFILM Corporation | 29817 |
43 |
| Hamamatsu Photonics K.K. | 4492 |
42 |
| NEC Corporation | 36257 |
38 |
| Shimadzu Corporation | 6232 |
36 |
| Sony Group Corporation | 14537 |
34 |
| F. Hoffmann-La Roche AG | 7933 |
33 |
| Viavi Solutions Inc. | 1473 |
32 |
| Nikon Corporation | 7303 |
31 |
| Siemens Healthcare Diagnostics Inc. | 2103 |
30 |
| Canon Kabushiki Kaisha | 7152 |
29 |
| Hitachi High-Technologies Corporation | 1996 |
26 |
| Samsung Electronics Co., Ltd. | 149087 |
20 |
| Hitachi, Ltd. | 15692 |
20 |
| Life Technologies Corporation | 3346 |
20 |
| Other owners | 3094 |