- All sections
- G - Physics
- G01J - Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet lightcolorimetryradiation pyrometry
- G01J 3/447 - Polarisation spectrometry
Patent holdings for IPC class G01J 3/447
Total number of patents in this class: 217
10-year publication summary
|
18
|
21
|
25
|
19
|
21
|
17
|
11
|
16
|
9
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Purdue Research Foundation | 3921 |
10 |
| Digimarc Corporation | 712 |
6 |
| J.A. Woollam Co., Inc. | 143 |
6 |
| Samsung Electronics Co., Ltd. | 157946 |
5 |
| Apple Inc. | 58885 |
4 |
| Corning Incorporated | 10510 |
4 |
| California Institute of Technology | 4037 |
4 |
| Harbin Institute of Technology | 492 |
4 |
| Horiba Jobin Yvon SAS | 47 |
4 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2440 |
4 |
| The Regents of the University of California | 20778 |
3 |
| Robert Bosch GmbH | 44176 |
3 |
| Cisco Technology, Inc. | 22503 |
3 |
| Lockheed Martin Corporation | 3255 |
3 |
| Hamamatsu Photonics K.K. | 4686 |
3 |
| Arizona Board of Regents on behalf of Arizona State University | 2941 |
3 |
| The Arizona Board of Regents on Behalf of the University of Arizona | 2304 |
3 |
| Beihang University | 560 |
3 |
| Hinds Instruments, Inc. | 25 |
3 |
| MBDA UK Limited | 231 |
3 |
| Other owners | 136 |