- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 9/40 - Closing vessels
Patent holdings for IPC class H01J 9/40
Total number of patents in this class: 41
10-year publication summary
|
3
|
3
|
1
|
0
|
1
|
1
|
0
|
1
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| OSRAM GmbH | 2442 |
4 |
| Ceravision Limited | 49 |
4 |
| Samsung Display Co., Ltd. | 30585 |
3 |
| Panasonic Corporation | 20786 |
2 |
| Hon Hai Precision Industry Co., Ltd. | 4157 |
2 |
| Koninklijke Philips Electronics N.V. | 13133 |
2 |
| Tsinghua University | 5426 |
2 |
| Canon Anelva Corporation | 676 |
2 |
| Hitachi Plasma Display Limited | 93 |
2 |
| General Electric Company | 18133 |
1 |
| Honeywell International Inc. | 13799 |
1 |
| NEC Corporation | 32703 |
1 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
1 |
| Chugai Ro Co., Ltd. | 124 |
1 |
| Hankuk Glass Industries, Inc. | 29 |
1 |
| PerkinElmer Optoelectronics GmbH & Co. KG | 10 |
1 |
| Triade Electronique | 3 |
1 |
| ULVAC, Inc. | 1448 |
1 |
| Umicore AG & Co. KG | 867 |
1 |
| Varex Imaging Corporation | 294 |
1 |
| Other owners | 7 |