- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 61/50 - Auxiliary parts or solid material within the envelope for reducing risk of explosion upon breakage of the envelope, e.g. for use in mines
Patent holdings for IPC class H01J 61/50
Total number of patents in this class: 29
10-year publication summary
|
1
|
0
|
4
|
1
|
1
|
0
|
0
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| OSRAM GmbH | 2442 |
5 |
| Koninklijke Philips Electronics N.V. | 13133 |
4 |
| Hewlett-Packard Development Company, L.P. | 28538 |
2 |
| Xylem IP Management S.a.r.l. | 37 |
2 |
| Panasonic Corporation | 20786 |
1 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
1 |
| Koninklijke Philips N.V. | 22975 |
1 |
| Applied Materials, Inc. | 16587 |
1 |
| Nikon Corporation | 7162 |
1 |
| Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | 166 |
1 |
| Alfawall Aktiebolag | 16 |
1 |
| Coretronic Corporation | 1165 |
1 |
| GS Yuasa International Ltd. | 1834 |
1 |
| Iida Home Max Co., Ltd. | 1 |
1 |
| Iida Sangyo Co., Ltd. | 12 |
1 |
| Sterilair AG | 7 |
1 |
| Xylem IP Management S.A R.L. | 70 |
1 |
| Koninklijke Philips Electronics N.V. a corporation | 16 |
1 |
| Kabushikikaisha Iidasangyo | 1 |
1 |
| Space Cannon VH S.p.A. | 2 |
1 |
| Other owners | 0 |