- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
Patent holdings for IPC class G01N 21/3581
Total number of patents in this class: 759
10-year publication summary
66
|
66
|
55
|
61
|
94
|
87
|
90
|
66
|
65
|
15
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hamamatsu Photonics K.K. | 4161 |
22 |
Murata Manufacturing Co., Ltd. | 22355 |
18 |
Canon Inc. | 36841 |
16 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
15 |
INOEX GmbH Innovationen und Ausrüstungen für die Extrusionstechnik | 31 |
14 |
Shenzhen Institute of Terahertz Technology and Innovation | 105 |
12 |
Hitachi High-Tech Corporation | 4424 |
12 |
Hitachi High-Technologies Corporation | 2034 |
10 |
Sikora AG | 60 |
10 |
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6132 |
10 |
Advantest Corporation | 1939 |
9 |
Canon Kabushiki Kaisha | 6884 |
9 |
NEC Corporation | 32703 |
8 |
Texas Instruments Incorporated | 19376 |
8 |
Pioneer Corporation | 4843 |
8 |
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
8 |
Helmut Fischer GmbH Institut fur Elektronik und Messtechnik | 154 |
8 |
Institut National de La Recherche Scientifique | 246 |
8 |
FEMTO Deployments Inc. | 16 |
8 |
The Boeing Company | 19843 |
7 |
Other owners | 539 |