- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit 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: 43
10-year publication summary
|
3
|
1
|
3
|
3
|
3
|
2
|
0
|
2
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4257 |
6 |
| Merck Patent GmbH | 5735 |
3 |
| Samsung Display Co., Ltd. | 38817 |
2 |
| OSRAM Opto Semiconductors GmbH | 3240 |
2 |
| Diamond Innovations, Inc. | 235 |
2 |
| UDC Ireland Limited | 506 |
2 |
| Universal Display Corporation | 2095 |
2 |
| Seaborough IP I B.V. | 14 |
2 |
| Signify Holding B.V. | 8118 |
2 |
| Sharp Display Technology Corporation | 1231 |
2 |
| LG Display Co., Ltd. | 15013 |
1 |
| E. I. du Pont de Nemours and Company | 3486 |
1 |
| Fujitsu Limited | 16854 |
1 |
| FUJIFILM Corporation | 30594 |
1 |
| Koninklijke Philips Electronics N.V. | 7277 |
1 |
| Massachusetts Institute of Technology | 10282 |
1 |
| University of Southern California | 2139 |
1 |
| Beneq Oy | 245 |
1 |
| Hodogaya Chemical Co., Ltd. | 430 |
1 |
| Kyonggi University Industry & Academia Cooperation Foundation | 81 |
1 |
| Other owners | 8 |