- 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 3/44 - Raman spectrometry; Scattering spectrometry
Patent holdings for IPC class G01J 3/44
Total number of patents in this class: 2495
10-year publication summary
166
|
163
|
163
|
215
|
196
|
201
|
186
|
172
|
162
|
49
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hewlett-Packard Development Company, L.P. | 28538 |
122 |
ChemImage Corporation | 225 |
82 |
Samsung Electronics Co., Ltd. | 131630 |
37 |
Massachusetts Institute of Technology | 9795 |
28 |
The Regents of the University of California | 18943 |
27 |
Metrohm Spectro, Inc. | 66 |
27 |
Chemimage Technologies LLC | 75 |
25 |
Endress+Hauser Optical Analysis, Inc. | 86 |
22 |
Tsinghua University | 5426 |
21 |
The General Hospital Corporation | 4517 |
19 |
Renishaw plc | 739 |
18 |
Canon Inc. | 36841 |
17 |
Shimadzu Corporation | 5791 |
17 |
Nuctech Company Limited | 1275 |
17 |
Hon Hai Precision Industry Co., Ltd. | 4157 |
16 |
Thermo Scientific Portable Analytical Instruments Inc. | 114 |
16 |
Centre National de La Recherche Scientifique | 9632 |
15 |
The Board of Trustees of the Leland Stanford Junior University | 6054 |
15 |
Hamamatsu Photonics K.K. | 4161 |
15 |
Seiko Epson Corporation | 18724 |
13 |
Other owners | 1926 |