- 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: 471
10-year publication summary
|
47
|
41
|
37
|
35
|
39
|
52
|
41
|
36
|
49
|
31
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Micromass UK Limited | 1120 |
81 |
| Shimadzu Corporation | 6235 |
77 |
| Thermo Fisher Scientific (Bremen) GmbH | 600 |
36 |
| DH Technologies Development Pte. Ltd. | 1139 |
35 |
| Thermo Finnigan LLC | 647 |
19 |
| Hitachi High-Tech Corporation | 5482 |
16 |
| Purdue Research Foundation | 3732 |
15 |
| Bruker Scientific LLC | 78 |
11 |
| Agilent Technologies, Inc. | 2643 |
9 |
| 908 Devices Inc. | 30 |
8 |
| PerkinElmer U.S. LLC | 285 |
8 |
| Massachusetts Institute of Technology | 10150 |
6 |
| ColdQuanta, Inc., AKA ColdQuanta | 175 |
6 |
| Bruker Daltonics GmbH & Co. KG | 442 |
6 |
| Duke University | 3125 |
5 |
| Edwards Limited | 792 |
5 |
| The University of North Carolina at Chapel Hill | 2067 |
5 |
| Leidos, Inc. | 212 |
4 |
| Hamilton Sundstrand Corporation | 4956 |
3 |
| Atonarp Inc | 116 |
3 |
| Other owners | 113 |