- 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 21/54 - Accessories
Patent holdings for IPC class G03B 21/54
Total number of patents in this class: 116
10-year publication summary
|
11
|
9
|
9
|
14
|
11
|
22
|
16
|
12
|
10
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Appotronics Corporation Limited | 1111 |
10 |
| Hisense Laser Display Co., Ltd. | 315 |
8 |
| Lightspeed Design, Inc. | 10 |
6 |
| Iview Displays (Shenzhen) Company Ltd. | 198 |
6 |
| Mimono LLC | 12 |
5 |
| Canon Inc. | 36841 |
4 |
| Seiko Epson Corporation | 18724 |
4 |
| Coretronic Corporation | 1165 |
4 |
| Samsung Electronics Co., Ltd. | 131630 |
3 |
| LG Electronics Inc. | 69257 |
3 |
| Ergotron, Inc. | 299 |
2 |
| Hand held Products, Inc. | 1227 |
2 |
| RedwoodVentures, LTD | 22 |
2 |
| Wang, Jiansheng, Dr. | 2 |
2 |
| Xyzed | 14 |
2 |
| Artome Oy | 7 |
2 |
| Legrand AV Inc. | 345 |
2 |
| Sony Corporation | 32931 |
1 |
| The Boeing Company | 19843 |
1 |
| Ricoh Company, Ltd. | 13266 |
1 |
| Other owners | 46 |