- All sections
- B - Performing operations; transporting
- B41J - Typewriters; selective printing mechanisms, i.e. mechanisms printing otherwise than from a forme; correction of typographical errors
- B41J 29/377 - Cooling or ventilating arrangements
Patent holdings for IPC class B41J 29/377
Total number of patents in this class: 504
10-year publication summary
|
37
|
51
|
51
|
62
|
58
|
51
|
35
|
45
|
38
|
28
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 18724 |
96 |
| Hewlett-Packard Development Company, L.P. | 28538 |
79 |
| Brother Industries, Ltd. | 13000 |
27 |
| Ricoh Company, Ltd. | 13266 |
24 |
| Canon Inc. | 36841 |
21 |
| Xerox Corporation | 7503 |
18 |
| Memjet Technology Ltd. | 757 |
14 |
| Kateeva, Inc. | 376 |
14 |
| Oce-Technologies B.V. | 475 |
12 |
| FUJIFILM Corporation | 27102 |
11 |
| Riso Kagaku Corporation | 666 |
11 |
| Kyocera Document Solutions Inc. | 5295 |
10 |
| Kyocera Corporation | 12735 |
8 |
| Veltek Associates, Inc. | 284 |
8 |
| Mimaki Engineering Co., Ltd. | 799 |
7 |
| FUJIFILM Business Innovation Corp. | 7395 |
7 |
| Toshiba TEC Corporation | 3877 |
6 |
| Toshiba Corporation | 12017 |
5 |
| Oki Electric Industry Co., Ltd. | 1652 |
5 |
| Konica Minolta, Inc. | 8349 |
4 |
| Other owners | 117 |