- All sections
- G - Physics
- G03G - Electrography; electrophotography; magnetography
- G03G 15/09 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
Patent holdings for IPC class G03G 15/09
Total number of patents in this class: 474
10-year publication summary
|
80
|
52
|
46
|
36
|
37
|
24
|
26
|
30
|
22
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 36841 |
132 |
| Kyocera Document Solutions Inc. | 5295 |
56 |
| Ricoh Company, Ltd. | 13266 |
51 |
| FUJIFILM Business Innovation Corp. | 7395 |
34 |
| Hewlett-Packard Development Company, L.P. | 28538 |
24 |
| Konica Minolta Business Technologies, Inc. | 1564 |
20 |
| Eastman Kodak Company | 3444 |
19 |
| Toshiba TEC Corporation | 3877 |
17 |
| Konica Minolta, Inc. | 8349 |
17 |
| Lexmark International, Inc. | 1793 |
14 |
| Kyocera Mita Corporation | 268 |
12 |
| Canon Kabushiki Kaisha | 6884 |
10 |
| Toshiba Corporation | 12017 |
9 |
| Sharp Corporation | 10015 |
9 |
| Brother Industries, Ltd. | 13000 |
8 |
| Xerox Corporation | 7503 |
6 |
| Oce Printing Systems GmbH | 134 |
4 |
| Ericsson | 20417 |
2 |
| Hitachi Metals, Ltd. | 2175 |
2 |
| P.M. Giken Inc. | 2 |
2 |
| Other owners | 26 |