- 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 21/14 - Projectors or projection-type viewersAccessories therefor Details
Patent holdings for IPC class G03B 21/14
Total number of patents in this class: 5480
10-year publication summary
|
441
|
396
|
504
|
555
|
460
|
402
|
300
|
254
|
222
|
103
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19352 |
608 |
| Sony Corporation | 31052 |
306 |
| Coretronic Corporation | 1280 |
238 |
| Panasonic Intellectual Property Management Co., Ltd. | 31375 |
236 |
| FUJIFILM Corporation | 29367 |
221 |
| NEC Display Solutions, Ltd. | 798 |
195 |
| Appotronics Corporation Limited | 1115 |
138 |
| Maxell, Ltd. | 2797 |
131 |
| NEC Corporation | 35652 |
107 |
| Ricoh Company, Ltd. | 13247 |
107 |
| Samsung Electronics Co., Ltd. | 146092 |
96 |
| Casio Computer Co., Ltd. | 3431 |
89 |
| Maxell Holdings, Ltd. | 1314 |
81 |
| Konica Minolta, Inc. | 8729 |
71 |
| Canon Inc. | 39888 |
69 |
| Sharp NEC Display Solutions, Ltd. | 519 |
65 |
| JVC Kenwood Corporation | 3008 |
61 |
| LG Electronics Inc. | 73021 |
52 |
| Sony Group Corporation | 13815 |
49 |
| Panasonic Corporation | 20110 |
45 |
| Other owners | 2515 |