- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 49/42 - Stability-of-path spectrometers, e.g. monopole, quadrupole, multipole, farvitrons
Patent holdings for IPC class H01J 49/42
Total number of patents in this class: 1937
10-year publication summary
|
128
|
125
|
142
|
165
|
140
|
155
|
116
|
137
|
109
|
52
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shimadzu Corporation | 6363 |
277 |
| Micromass UK Limited | 1125 |
223 |
| Thermo Finnigan LLC | 644 |
182 |
| DH Technologies Development Pte. Ltd. | 1177 |
173 |
| Thermo Fisher Scientific (Bremen) GmbH | 630 |
152 |
| The Trustees of Indiana University | 831 |
58 |
| Hitachi High-Tech Corporation | 5903 |
49 |
| Purdue Research Foundation | 3929 |
48 |
| Bruker Daltonics GmbH & Co. KG | 460 |
35 |
| Leco Corporation | 198 |
25 |
| Agilent Technologies, Inc. | 2637 |
22 |
| Hitachi High-Technologies Corporation | 1987 |
21 |
| Atonarp Inc | 119 |
19 |
| Infineon Technologies Austria AG | 2343 |
16 |
| Quantinuum LLC | 296 |
16 |
| Bruker Scientific LLC | 79 |
15 |
| Battelle Memorial Institute | 2609 |
13 |
| The University of North Carolina at Chapel Hill | 2111 |
12 |
| Bruker Daltonik GmbH | 20 |
12 |
| Duke University | 3181 |
11 |
| Other owners | 558 |