- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 33/04 - Sealing arrangements
Patent holdings for IPC class H05B 33/04
Total number of patents in this class: 2065
10-year publication summary
|
161
|
198
|
214
|
119
|
69
|
83
|
40
|
21
|
6
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18616 |
233 |
| Konica Minolta, Inc. | 8960 |
152 |
| Pioneer Corporation | 4050 |
108 |
| Sumitomo Chemical Company, Limited | 9039 |
75 |
| Semiconductor Energy Laboratory Co., Ltd. | 11583 |
74 |
| Samsung Display Co., Ltd. | 37127 |
72 |
| FUJIFILM Corporation | 30010 |
66 |
| Sekisui Chemical Co., Ltd. | 3528 |
63 |
| Panasonic Corporation | 19890 |
58 |
| Lintec Corporation | 1995 |
54 |
| Tohoku Pioneer Corporation | 470 |
41 |
| Japan Display Inc. | 2841 |
41 |
| Mitsui Chemicals, Inc. | 3232 |
37 |
| Nitto Denko Corporation | 8399 |
36 |
| Panasonic Intellectual Property Management Co., Ltd. | 32904 |
34 |
| Sakai Display Products Corporation | 789 |
33 |
| Sharp Corporation | 10358 |
28 |
| Sony Semiconductor Solutions Corporation | 11018 |
28 |
| Konica Minolta Holdings, Inc. | 855 |
27 |
| Ajinomoto Co., Inc. | 2302 |
27 |
| Other owners | 778 |