- 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: 3755
10-year publication summary
304
|
319
|
370
|
357
|
295
|
303
|
262
|
237
|
155
|
35
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Konica Minolta, Inc. | 8561 |
71 |
Panasonic Intellectual Property Management Co., Ltd. | 29944 |
65 |
Halliburton Energy Services, Inc. | 20477 |
52 |
Hitachi High-Tech Corporation | 5100 |
47 |
Olympus Corporation | 13265 |
46 |
Sony Corporation | 31511 |
44 |
FUJIFILM Corporation | 28857 |
44 |
Hamamatsu Photonics K.K. | 4321 |
40 |
NEC Corporation | 34584 |
38 |
Shimadzu Corporation | 6047 |
36 |
F. Hoffmann-La Roche AG | 7957 |
32 |
Nikon Corporation | 7120 |
31 |
Sony Group Corporation | 12811 |
31 |
Viavi Solutions Inc. | 1399 |
30 |
Canon Kabushiki Kaisha | 6963 |
30 |
Hitachi High-Technologies Corporation | 2016 |
26 |
Siemens Healthcare Diagnostics Inc. | 2015 |
25 |
National Institute of Advanced Industrial Science and Technology | 3758 |
21 |
Hitachi, Ltd. | 15264 |
20 |
Life Technologies Corporation | 3227 |
19 |
Other owners | 3007 |