- All sections
- G - Physics
- G03G - Electrographyelectrophotographymagnetography
- G03G 15/23 - Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
Patent holdings for IPC class G03G 15/23
Total number of patents in this class: 356
10-year publication summary
|
54
|
39
|
31
|
19
|
20
|
14
|
15
|
14
|
15
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 44222 |
141 |
| Brother Industries, Ltd. | 12831 |
57 |
| Konica Minolta, Inc. | 9165 |
28 |
| Kyocera Document Solutions Inc. | 6345 |
21 |
| Ricoh Company, Ltd. | 13355 |
16 |
| Hewlett-Packard Development Company, L.P. | 25148 |
13 |
| FUJIFILM Business Innovation Corp. | 7996 |
13 |
| Sharp Corporation | 10860 |
10 |
| Eastman Kodak Company | 2584 |
8 |
| Avision Inc. | 279 |
5 |
| Konica Minolta Business Technologies, Inc. | 1313 |
4 |
| Océ Holding B.V. | 106 |
4 |
| Toshiba TEC Corporation | 3910 |
3 |
| HP Indigo B.V. | 529 |
3 |
| Toshiba Corporation | 12660 |
2 |
| Lexmark International, Inc. | 1534 |
2 |
| Landa Corporation Ltd. | 260 |
2 |
| Oce-Technologies B.V. | 439 |
2 |
| Zhuhai Pantum Electronics Co., Ltd. | 260 |
2 |
| Canon Finetech Nisca Inc. | 272 |
2 |
| Other owners | 18 |