- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 61/86 - Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
Patent holdings for IPC class H01J 61/86
Total number of patents in this class: 94
10-year publication summary
|
3
|
5
|
3
|
2
|
3
|
2
|
3
|
1
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| OSRAM GmbH | 2442 |
25 |
| Koninklijke Philips Electronics N.V. | 13133 |
9 |
| Iwasaki Electric Co., Ltd. | 151 |
7 |
| Ushio Denki Kabushiki Kaisha | 1088 |
6 |
| Osram AG | 305 |
5 |
| Seiko Epson Corporation | 18724 |
4 |
| Philips Intellectual Property & Standards GmbH | 2395 |
4 |
| Hewlett-Packard Development Company, L.P. | 28538 |
3 |
| Phoenix Electric Co., Ltd. | 43 |
2 |
| Toshiba Lighting & Technology Corporation | 340 |
2 |
| Beijing E-town Semiconductor Technology, Co., Ltd | 246 |
2 |
| Cosmo Holdings Co.,Ltd. | 13 |
2 |
| General Electric Company | 18133 |
1 |
| The Boeing Company | 19843 |
1 |
| Canon Inc. | 36841 |
1 |
| Panasonic Corporation | 20786 |
1 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
1 |
| Nikon Corporation | 7162 |
1 |
| Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | 166 |
1 |
| The Board of Trustees of the University of Illinois | 2623 |
1 |
| Other owners | 15 |