- All sections
- G - Physics
- G03G - Electrography; electrophotography; magnetography
- G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
Patent holdings for IPC class G03G 15/01
Total number of patents in this class: 2151
10-year publication summary
|
229
|
194
|
168
|
146
|
200
|
143
|
138
|
97
|
89
|
22
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 36856 |
494 |
| Brother Industries, Ltd. | 13284 |
279 |
| Ricoh Company, Ltd. | 14053 |
241 |
| FUJIFILM Business Innovation Corp. | 7579 |
174 |
| Hewlett-Packard Development Company, L.P. | 29751 |
123 |
| Konica Minolta, Inc. | 8205 |
90 |
| Toshiba TEC Corporation | 3902 |
88 |
| Kyocera Document Solutions Inc. | 5761 |
83 |
| Toshiba Corporation | 12033 |
56 |
| Canon Kabushiki Kaisha | 6683 |
56 |
| Sharp Corporation | 11048 |
55 |
| Konica Minolta Business Technologies, Inc. | 1726 |
53 |
| Eastman Kodak Company | 4117 |
50 |
| Oki Electric Industry Co., Ltd. | 1736 |
43 |
| Xerox Corporation | 6811 |
30 |
| Lexmark International, Inc. | 1966 |
23 |
| HP Indigo B.V. | 580 |
19 |
| Kyocera Mita Corporation | 390 |
17 |
| Hewlett-Packard Indigo B.V. | 273 |
17 |
| Seiko Epson Corporation | 19240 |
16 |
| Other owners | 144 |