- All sections
- G - Physics
- G03G - Electrography; electrophotography; magnetography
- G03G 21/16 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
Patent holdings for IPC class G03G 21/16
Total number of patents in this class: 4592
10-year publication summary
|
439
|
448
|
450
|
481
|
416
|
475
|
454
|
325
|
338
|
86
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 36841 |
1251 |
| Brother Industries, Ltd. | 13000 |
1237 |
| Kyocera Document Solutions Inc. | 5295 |
443 |
| Ricoh Company, Ltd. | 13266 |
269 |
| Hewlett-Packard Development Company, L.P. | 28538 |
203 |
| FUJIFILM Business Innovation Corp. | 7395 |
200 |
| Lexmark International, Inc. | 1793 |
187 |
| Brother Kogyo Kabushikikaisha | 1709 |
107 |
| Canon Kabushiki Kaisha | 6884 |
98 |
| Sharp Corporation | 10015 |
76 |
| Toshiba TEC Corporation | 3877 |
69 |
| Konica Minolta, Inc. | 8349 |
58 |
| Oki Electric Industry Co., Ltd. | 1652 |
44 |
| Mitsubishi Chemical Corporation | 4313 |
29 |
| Toshiba Corporation | 12017 |
28 |
| Seiko Epson Corporation | 18724 |
26 |
| Ninestar Corporation | 55 |
15 |
| Mitsubishi Rayon Co., Ltd. | 1003 |
12 |
| Print-Rite ? Unicorn Image Products Co., Ltd. of Zhuhai | 237 |
12 |
| HP Printing Korea Co., Ltd. | 187 |
12 |
| Other owners | 216 |