- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 49/28 - Static spectrometers
Patent holdings for IPC class H01J 49/28
Total number of patents in this class: 119
10-year publication summary
|
10
|
13
|
6
|
15
|
7
|
10
|
6
|
2
|
5
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Leco Corporation | 202 |
15 |
| Thermo Fisher Scientific (Bremen) GmbH | 590 |
15 |
| Micromass UK Limited | 1118 |
10 |
| Thermo Finnigan LLC | 637 |
5 |
| Shimadzu Corporation | 6187 |
4 |
| Luxembourg Institute of Science and Technology (list) | 386 |
4 |
| MKS Instruments, Inc. | 646 |
4 |
| Northrop Grumman Systems Corporation | 2935 |
3 |
| DH Technologies Development Pte. Ltd. | 1122 |
3 |
| Bruker Daltonics GmbH & Co. KG | 441 |
3 |
| Sharp Corporation | 10272 |
2 |
| Agilent Technologies, Inc. | 2637 |
2 |
| Institute of Geology and Geophysics, Chinese Academy of Sciences | 326 |
2 |
| PerkinElmer Health Sciences, Inc. | 214 |
2 |
| The Trustees of Indiana University | 748 |
2 |
| The University of Hong Kong | 782 |
2 |
| University of Northern Iowa Research Foundation | 22 |
2 |
| Waters Technologies Corporation | 1701 |
2 |
| Meridion, LLC | 3 |
2 |
| Highland Innovations Inc. | 5 |
2 |
| Other owners | 33 |