- All sections
- G - Physics
- G03B - Apparatus or arrangements for taking photographs or for projecting or viewing themapparatus or arrangements employing analogous techniques using waves other than optical wavesaccessories therefor
- G03B 21/56 - Projection screens
Patent holdings for IPC class G03B 21/56
Total number of patents in this class: 770
10-year publication summary
|
76
|
71
|
69
|
79
|
76
|
65
|
56
|
27
|
20
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Appotronics Corporation Limited | 1116 |
40 |
| RealD Inc. | 259 |
33 |
| Hisense Laser Display Co., Ltd. | 399 |
28 |
| Seiko Epson Corporation | 19478 |
20 |
| Dolby Laboratories Licensing Corporation | 4140 |
18 |
| IMAX Corporation | 260 |
14 |
| Samsung Electronics Co., Ltd. | 147334 |
13 |
| Disney Enterprises, Inc. | 6126 |
13 |
| Sony Corporation | 30957 |
13 |
| CJ CGV Co., Ltd. | 78 |
13 |
| Draper, Inc. | 65 |
12 |
| Maxell, Ltd. | 2817 |
12 |
| Boe Technology Group Co., Ltd. | 41461 |
11 |
| 3m Innovative Properties Company | 17812 |
10 |
| LG Electronics Inc. | 73476 |
10 |
| Mssl Consolidated Inc. | 105 |
10 |
| Barco N.V. | 534 |
9 |
| Universal City Studios LLC | 2571 |
9 |
| Coretronic Corporation | 1292 |
8 |
| Mirraviz, Inc. | 30 |
8 |
| Other owners | 466 |