- All sections
- B - Performing operationstransporting
- B41J - Typewritersselective printing mechanisms, i.e. mechanisms printing otherwise than from a formecorrection of typographical errors
- B41J 3/32 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing in Braille or with keyboards specially adapted for use by blind or disabled persons
Patent holdings for IPC class B41J 3/32
Total number of patents in this class: 43
10-year publication summary
|
1
|
2
|
9
|
6
|
6
|
3
|
3
|
3
|
0
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Perkins School for the Blind | 26 |
4 |
| International Business Machines Corporation | 60696 |
3 |
| Xerox Corporation | 7048 |
2 |
| Casio Computer Co., Ltd. | 3423 |
2 |
| Bobst Mex SA | 580 |
2 |
| Canadian Bank Note Company, Limited | 53 |
2 |
| Dentsu Inc. | 169 |
2 |
| Institute of Electrical Engineering, Chinese Academy of Sciences | 78 |
2 |
| Xi'an Jiaotong University | 645 |
2 |
| Educational Media Consulting, LLC | 3 |
2 |
| Atlantic Zeiser GmbH | 32 |
1 |
| Beijing Meikeyi Co., Ltd. | 24 |
1 |
| Carestream Health, Inc. | 705 |
1 |
| Dilli | 8 |
1 |
| Donghua University | 67 |
1 |
| Electronic Brailler, Inc. | 1 |
1 |
| Entrust DataCard Corporation | 85 |
1 |
| Heishin Ltd. | 88 |
1 |
| Kyoto Seisakusho Co., Ltd. | 93 |
1 |
| Masterwork Machinery Co., Ltd. | 28 |
1 |
| Other owners | 10 |