- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 33/18 - Light sources with substantially two-dimensional radiating surfaces characterised by the nature or concentration of the activator
Patent holdings for IPC class H05B 33/18
Total number of patents in this class: 46
10-year publication summary
|
3
|
2
|
3
|
1
|
3
|
3
|
3
|
2
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 3995 |
6 |
| Merck Patent GmbH | 5909 |
5 |
| Samsung Display Co., Ltd. | 30585 |
2 |
| FUJIFILM Corporation | 27102 |
2 |
| Koninklijke Philips Electronics N.V. | 13133 |
2 |
| OSRAM Opto Semiconductors GmbH | 3390 |
2 |
| Diamond Innovations, Inc. | 241 |
2 |
| Universal Display Corporation | 1678 |
2 |
| Seaborough IP I B.V. | 19 |
2 |
| Philips Intellectual Property & Standards GmbH | 2395 |
2 |
| LG Display Co., Ltd. | 11907 |
1 |
| E. I. du Pont de Nemours and Company | 4345 |
1 |
| Panasonic Corporation | 20786 |
1 |
| Massachusetts Institute of Technology | 9795 |
1 |
| University of Southern California | 2016 |
1 |
| Acol Technologies SA | 10 |
1 |
| Beneq Oy | 205 |
1 |
| Hodogaya Chemical Co., Ltd. | 417 |
1 |
| Kyonggi University Industry & Academia Cooperation Foundation | 54 |
1 |
| Novaled GmbH | 369 |
1 |
| Other owners | 9 |