- 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: 460
10-year publication summary
|
47
|
41
|
37
|
35
|
39
|
52
|
41
|
36
|
48
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Micromass UK Limited | 1119 |
80 |
| Shimadzu Corporation | 6191 |
77 |
| Thermo Fisher Scientific (Bremen) GmbH | 592 |
36 |
| DH Technologies Development Pte. Ltd. | 1124 |
35 |
| Thermo Finnigan LLC | 638 |
18 |
| Hitachi High-Tech Corporation | 5374 |
16 |
| Purdue Research Foundation | 3670 |
15 |
| Bruker Scientific LLC | 78 |
11 |
| Agilent Technologies, Inc. | 2638 |
9 |
| 908 Devices Inc. | 31 |
8 |
| PerkinElmer U.S. LLC | 290 |
8 |
| Massachusetts Institute of Technology | 10110 |
6 |
| ColdQuanta, Inc., AKA ColdQuanta | 173 |
6 |
| Bruker Daltonics GmbH & Co. KG | 441 |
6 |
| Duke University | 3087 |
5 |
| Edwards Limited | 793 |
5 |
| The University of North Carolina at Chapel Hill | 2053 |
5 |
| Leidos, Inc. | 211 |
4 |
| Hamilton Sundstrand Corporation | 4916 |
3 |
| Atonarp Inc | 115 |
3 |
| Other owners | 104 |