- 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 21/26 - Projecting separately subsidiary matter simultaneously with main image
Patent holdings for IPC class G03B 21/26
Total number of patents in this class: 574
10-year publication summary
|
23
|
33
|
30
|
30
|
24
|
27
|
18
|
13
|
7
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19269 |
55 |
| Casio Computer Co., Ltd. | 3420 |
33 |
| Sony Corporation | 31148 |
20 |
| Texas Instruments Incorporated | 19487 |
17 |
| Maxell, Ltd. | 2767 |
16 |
| Canon Inc. | 39442 |
14 |
| Disney Enterprises, Inc. | 6079 |
13 |
| Maxell Holdings, Ltd. | 1327 |
13 |
| Coretronic Corporation | 1265 |
12 |
| Microvision, Inc. | 327 |
9 |
| Sanyo Electric Co., Ltd. | 3710 |
8 |
| Microsoft Technology Licensing, LLC | 53512 |
8 |
| Dolby Laboratories Licensing Corporation | 4093 |
8 |
| CJ 4D Plex Co., Ltd. | 26 |
7 |
| Université du Québec à Montréal | 27 |
7 |
| WBC Photonics, Inc. | 136 |
7 |
| Panasonic Corporation | 20173 |
6 |
| Tooz Technologies GmbH | 120 |
6 |
| Sharp NEC Display Solutions, Ltd. | 513 |
6 |
| Samsung Electronics Co., Ltd. | 144143 |
5 |
| Other owners | 304 |