- All sections
- G - Physics
- G01J - Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet lightcolorimetryradiation pyrometry
- G01J 3/42 - Absorption spectrometryDouble-beam spectrometryFlicker spectrometryReflection spectrometry
Patent holdings for IPC class G01J 3/42
Total number of patents in this class: 1495
10-year publication summary
130
|
136
|
161
|
174
|
159
|
125
|
86
|
79
|
71
|
17
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Shimadzu Corporation | 6036 |
35 |
Omni Medsci, Inc. | 34 |
26 |
Samsung Electronics Co., Ltd. | 139551 |
23 |
Hamamatsu Photonics K.K. | 4313 |
20 |
Endress+Hauser Optical Analysis, Inc. | 95 |
19 |
Viavi Solutions Inc. | 1395 |
18 |
Apple Inc. | 52932 |
16 |
Trinamix GmbH | 313 |
16 |
Seiko Epson Corporation | 19020 |
12 |
Halliburton Energy Services, Inc. | 20466 |
11 |
Siemens AG | 24568 |
11 |
Massachusetts Institute of Technology | 9930 |
11 |
Agilent Technologies, Inc. | 2683 |
11 |
Honeywell International Inc. | 14033 |
10 |
Yokogawa Electric Corporation | 1697 |
10 |
The Boeing Company | 19922 |
9 |
Canon Inc. | 38296 |
9 |
Centre National de La Recherche Scientifique | 10140 |
8 |
California Institute of Technology | 3935 |
8 |
Thermo Electron Scientific Instruments LLC | 188 |
8 |
Other owners | 1204 |