- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 61/72 - Lamps with low-pressure unconstricted discharge having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
Patent holdings for IPC class H01J 61/72
Total number of patents in this class: 73
10-year publication summary
|
3
|
2
|
5
|
4
|
5
|
2
|
5
|
1
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| OSRAM GmbH | 2442 |
12 |
| Heraeus Noblelight GmbH | 233 |
11 |
| Koninklijke Philips Electronics N.V. | 13133 |
10 |
| General Electric Company | 18133 |
5 |
| Panasonic Corporation | 20786 |
3 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
3 |
| LEDVANCE GmbH | 564 |
3 |
| SAES Getters S.p.A. | 338 |
3 |
| Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | 166 |
2 |
| Xylem IP Management S.A R.L. | 70 |
2 |
| Xylem IP Management S.a.r.l. | 37 |
2 |
| Xylem Europe GmbH | 204 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Industrial Technology Research Institute | 4898 |
1 |
| Board of Regents, The University of Texas System | 5370 |
1 |
| Osram AG | 305 |
1 |
| Dr. Hönle Aktiengesellschaft | 8 |
1 |
| Japan Nuclear Cycle Development Institute | 4 |
1 |
| Light Sources, Inc. | 26 |
1 |
| LightLab Sweden AB | 39 |
1 |
| Other owners | 7 |