- All sections
- G - Physics
- G03G - Electrographyelectrophotographymagnetography
- G03G 21/02 - Counting the number of copiesBilling
Patent holdings for IPC class G03G 21/02
Total number of patents in this class: 100
10-year publication summary
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4
|
5
|
4
|
6
|
1
|
3
|
4
|
7
|
9
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 43768 |
21 |
| Kyocera Document Solutions Inc. | 6242 |
13 |
| Toshiba Corporation | 12548 |
8 |
| Toshiba TEC Corporation | 3902 |
8 |
| Konica Minolta, Inc. | 9116 |
8 |
| Sharp Corporation | 10533 |
6 |
| Konica Minolta Business Technologies, Inc. | 1320 |
6 |
| Xerox Corporation | 4394 |
5 |
| Hewlett-Packard Development Company, L.P. | 25216 |
5 |
| Brother Industries, Ltd. | 12842 |
5 |
| Canon Kabushiki Kaisha | 7307 |
4 |
| ETRIA Co., Ltd. | 83 |
2 |
| Seiko Epson Corporation | 20248 |
1 |
| Ricoh Company, Ltd. | 13346 |
1 |
| Eastman Kodak Company | 2607 |
1 |
| Oki Data Corporation | 93 |
1 |
| nQUEUE, Inc. | 1 |
1 |
| Sharp Kabushiki Kaisha | 18530 |
1 |
| Brother Kogyo Kabushikikaisha | 1799 |
1 |
| Topjet Technology Co., Ltd | 23 |
1 |
| Other owners | 1 |