- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 49/44 - Energy spectrometers, e.g. alpha-, beta-spectrometers
Patent holdings for IPC class H01J 49/44
Total number of patents in this class: 57
10-year publication summary
|
2
|
4
|
3
|
3
|
4
|
10
|
2
|
0
|
2
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6179 |
6 |
| Scienta Omicron AB | 20 |
4 |
| ExxonMobil Research And Engineering Company | 2570 |
3 |
| FEI Company | 947 |
3 |
| Micromass UK Limited | 1118 |
3 |
| Agilent Technologies, Inc. | 2638 |
2 |
| JEOL Ltd. | 582 |
2 |
| The Trustees of Indiana University | 742 |
2 |
| General Electric Company | 13810 |
1 |
| Hitachi High-Technologies Corporation | 2004 |
1 |
| Applied Materials, Inc. | 18746 |
1 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42945 |
1 |
| Thermo Finnigan LLC | 638 |
1 |
| Carl Zeiss SMT GmbH | 2999 |
1 |
| Appfive LLC | 3 |
1 |
| Atonarp Inc | 115 |
1 |
| Biodesix, Inc. | 113 |
1 |
| Gatan, Inc. | 104 |
1 |
| IHI Corporation | 3450 |
1 |
| Ilika Technologies Ltd | 69 |
1 |
| Other owners | 20 |