- 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: 1519
10-year publication summary
|
130
|
136
|
161
|
174
|
159
|
125
|
88
|
82
|
72
|
41
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6132 |
35 |
| Omni Medsci, Inc. | 36 |
27 |
| Samsung Electronics Co., Ltd. | 143812 |
23 |
| Trinamix GmbH | 366 |
22 |
| Hamamatsu Photonics K.K. | 4382 |
20 |
| Viavi Solutions Inc. | 1415 |
20 |
| Endress+Hauser Optical Analysis, Inc. | 99 |
19 |
| Apple Inc. | 54416 |
16 |
| Seiko Epson Corporation | 19261 |
12 |
| Halliburton Energy Services, Inc. | 20730 |
11 |
| Siemens AG | 24568 |
11 |
| Centre National de La Recherche Scientifique | 10311 |
11 |
| Massachusetts Institute of Technology | 10002 |
11 |
| Agilent Technologies, Inc. | 2642 |
11 |
| Honeywell International Inc. | 13557 |
10 |
| Yokogawa Electric Corporation | 1716 |
10 |
| The Boeing Company | 19994 |
9 |
| Canon Inc. | 39365 |
9 |
| California Institute of Technology | 3966 |
9 |
| Thermo Electron Scientific Instruments LLC | 189 |
8 |
| Other owners | 1215 |