- All sections
- G - Physics
- G03G - Electrographyelectrophotographymagnetography
- G03G 15/02 - Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitisingCorona discharge devices
Patent holdings for IPC class G03G 15/02
Total number of patents in this class: 1724
10-year publication summary
|
145
|
146
|
162
|
154
|
116
|
105
|
93
|
97
|
95
|
70
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 40555 |
525 |
| FUJIFILM Business Innovation Corp. | 7740 |
223 |
| Canon Kabushiki Kaisha | 7099 |
140 |
| Hewlett-Packard Development Company, L.P. | 25769 |
95 |
| Kyocera Document Solutions Inc. | 5724 |
84 |
| Brother Industries, Ltd. | 12950 |
83 |
| Ricoh Company, Ltd. | 13384 |
68 |
| Sumitomo Riko Company Limited | 1089 |
64 |
| Konica Minolta, Inc. | 8807 |
56 |
| Xerox Corporation | 6983 |
37 |
| Sharp Corporation | 10281 |
34 |
| NOK Corporation | 2238 |
31 |
| Toshiba TEC Corporation | 3820 |
25 |
| Lexmark International, Inc. | 1653 |
22 |
| Bridgestone Corporation | 7218 |
21 |
| HP Indigo B.V. | 529 |
21 |
| Oki Electric Industry Co., Ltd. | 1589 |
15 |
| Sumitomo Rubber Industries, Ltd. | 4673 |
13 |
| Toshiba Corporation | 12516 |
12 |
| Archem Inc. | 118 |
10 |
| Other owners | 145 |