- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 49/24 - Vacuum systems, e.g. maintaining desired pressures
Patent holdings for IPC class H01J 49/24
Total number of patents in this class: 478
10-year publication summary
|
41
|
37
|
35
|
39
|
52
|
41
|
35
|
48
|
33
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Micromass UK Limited | 1123 |
84 |
| Shimadzu Corporation | 6312 |
79 |
| DH Technologies Development Pte. Ltd. | 1160 |
37 |
| Thermo Fisher Scientific (Bremen) GmbH | 616 |
35 |
| Thermo Finnigan LLC | 642 |
19 |
| Hitachi High-Tech Corporation | 5685 |
16 |
| Purdue Research Foundation | 3869 |
15 |
| Bruker Scientific LLC | 79 |
11 |
| Agilent Technologies, Inc. | 2648 |
9 |
| 908 Devices Inc. | 32 |
8 |
| PerkinElmer U.S. LLC | 274 |
8 |
| Bruker Daltonics GmbH & Co. KG | 452 |
7 |
| Massachusetts Institute of Technology | 10202 |
6 |
| ColdQuanta, Inc., AKA ColdQuanta | 181 |
6 |
| Duke University | 3171 |
5 |
| The University of North Carolina at Chapel Hill | 2080 |
5 |
| Edwards Limited | 781 |
4 |
| Leidos, Inc. | 214 |
4 |
| Hamilton Sundstrand Corporation | 5018 |
3 |
| Atonarp Inc | 118 |
3 |
| Other owners | 114 |