- 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: 404
10-year publication summary
|
35
|
47
|
41
|
37
|
35
|
39
|
52
|
41
|
36
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Micromass UK Limited | 1121 |
77 |
| Shimadzu Corporation | 5791 |
66 |
| DH Technologies Development Pte. Ltd. | 938 |
29 |
| Thermo Fisher Scientific (Bremen) GmbH | 496 |
28 |
| Purdue Research Foundation | 3277 |
14 |
| Thermo Finnigan LLC | 625 |
13 |
| Hitachi High-Tech Corporation | 4424 |
12 |
| Bruker Scientific LLC | 74 |
11 |
| PerkinElmer U.S. LLC | 312 |
9 |
| 908 Devices Inc. | 38 |
8 |
| Massachusetts Institute of Technology | 9795 |
6 |
| Agilent Technologies, Inc. | 2744 |
6 |
| ColdQuanta, Inc., AKA ColdQuanta | 142 |
6 |
| Edwards Limited | 764 |
5 |
| The University of North Carolina at Chapel Hill | 1928 |
5 |
| Bruker Daltonics GmbH & Co. KG | 440 |
5 |
| Hamilton Sundstrand Corporation | 4525 |
3 |
| Duke University | 2872 |
3 |
| Atonarp Inc | 101 |
3 |
| Smiths Detection Inc. | 151 |
3 |
| Other owners | 92 |