- All sections
- G - Physics
- G03B - Apparatus or arrangements for taking photographs or for projecting or viewing them; apparatus or arrangements employing analogous techniques using waves other than optical waves; accessories therefor
- G03B 21/60 - Projection screens characterised by the nature of the surface
Patent holdings for IPC class G03B 21/60
Total number of patents in this class: 799
10-year publication summary
|
65
|
56
|
61
|
74
|
91
|
62
|
64
|
52
|
33
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Appotronics Corporation Limited | 1111 |
51 |
| Dai Nippon Printing Co., Ltd. | 3891 |
32 |
| FUJIFILM Corporation | 27102 |
23 |
| RealD Inc. | 260 |
20 |
| Mirraviz, Inc. | 30 |
19 |
| Sony Corporation | 32931 |
16 |
| Dolby Laboratories Licensing Corporation | 3883 |
16 |
| Agc, Inc. | 4029 |
16 |
| Seiko Epson Corporation | 18724 |
14 |
| NEC Corporation | 32703 |
13 |
| LG Electronics Inc. | 69257 |
12 |
| Hisense Laser Display Co., Ltd. | 315 |
12 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
11 |
| 3m Innovative Properties Company | 18406 |
10 |
| Arisawa Mfg. Co., Ltd. | 120 |
10 |
| JXTG Nippon Oil & Energy Corporation | 325 |
10 |
| Sharp Kabushiki Kaisha | 18957 |
10 |
| Disney Enterprises, Inc. | 6012 |
9 |
| Saint-Gobain Glass France | 3641 |
9 |
| Hewlett-Packard Development Company, L.P. | 28538 |
8 |
| Other owners | 478 |