- All sections
- G - Physics
- G03G - Electrography; electrophotography; magnetography
- G03G 15/02 - Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
Patent holdings for IPC class G03G 15/02
Total number of patents in this class: 1681
10-year publication summary
|
126
|
145
|
147
|
163
|
154
|
116
|
105
|
93
|
93
|
30
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 36841 |
484 |
| FUJIFILM Business Innovation Corp. | 7395 |
197 |
| Canon Kabushiki Kaisha | 6884 |
136 |
| Hewlett-Packard Development Company, L.P. | 28538 |
106 |
| Brother Industries, Ltd. | 13000 |
87 |
| Kyocera Document Solutions Inc. | 5295 |
79 |
| Ricoh Company, Ltd. | 13266 |
74 |
| Konica Minolta, Inc. | 8349 |
57 |
| Sumitomo Riko Company Limited | 962 |
56 |
| Xerox Corporation | 7503 |
45 |
| Sharp Corporation | 10015 |
40 |
| NOK Corporation | 2108 |
31 |
| Bridgestone Corporation | 7067 |
24 |
| Lexmark International, Inc. | 1793 |
23 |
| HP Indigo B.V. | 540 |
21 |
| Toshiba TEC Corporation | 3877 |
19 |
| Oki Electric Industry Co., Ltd. | 1652 |
15 |
| Sumitomo Rubber Industries, Ltd. | 4421 |
13 |
| Toshiba Corporation | 12017 |
12 |
| Konica Minolta Business Technologies, Inc. | 1564 |
12 |
| Other owners | 150 |