- All sections
- G - Physics
- G01J - Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light; colorimetry; radiation pyrometry
- G01J 3/42 - Absorption spectrometry; Double-beam spectrometry; Flicker spectrometry; Reflection spectrometry
Patent holdings for IPC class G01J 3/42
Total number of patents in this class: 1449
10-year publication summary
|
120
|
130
|
136
|
161
|
173
|
158
|
124
|
80
|
75
|
20
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 5791 |
34 |
| Samsung Electronics Co., Ltd. | 131630 |
22 |
| Hamamatsu Photonics K.K. | 4161 |
20 |
| Endress+Hauser Optical Analysis, Inc. | 86 |
19 |
| Omni Medsci, Inc. | 27 |
18 |
| Viavi Solutions Inc. | 1363 |
18 |
| Apple Inc. | 50209 |
14 |
| Halliburton Energy Services, Inc. | 20165 |
11 |
| Siemens AG | 24990 |
11 |
| Seiko Epson Corporation | 18724 |
11 |
| Massachusetts Institute of Technology | 9795 |
11 |
| Agilent Technologies, Inc. | 2744 |
11 |
| Honeywell International Inc. | 13799 |
10 |
| Canon Inc. | 36841 |
10 |
| Yokogawa Electric Corporation | 1584 |
10 |
| The Boeing Company | 19843 |
9 |
| Centre National de La Recherche Scientifique | 9632 |
8 |
| Phillips 66 Company | 1073 |
8 |
| Robert Bosch GmbH | 40953 |
7 |
| California Institute of Technology | 3884 |
7 |
| Other owners | 1180 |