G09B 21/02
Devices for braille writing
Official title: Devices for Braille writing (typewriters for Braille B41J3/32)
G09B21/02 (Devices for braille writing) appears on 116 US grants and 131 published applications in this corpus.
Search patents in G09B- Granted patents
- 116
- Published applications
- 131
- Assignees
- 96
- Inventors
- 315
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 3 |
| 2004 | 2 | 1 |
| 2005 | 2 | 5 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 3 | 4 |
| 2009 | 1 | 6 |
| 2010 | 1 | 5 |
| 2011 | 3 | 9 |
| 2012 | 1 | 5 |
| 2013 | 7 | 10 |
| 2014 | 2 | 6 |
| 2015 | 4 | 5 |
| 2016 | 3 | 9 |
| 2017 | 6 | 4 |
| 2018 | 4 | 10 |
| 2019 | 11 | 11 |
| 2020 | 5 | 8 |
| 2021 | 6 | 6 |
| 2022 | 5 | 5 |
| 2023 | 4 | 8 |
| 2024 | 4 | 3 |
| 2025 | 2 | 2 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Switchable conversion of a standard keyboard to a braille interface11 Aug 2026US 12,704,908 B2Intel Corporation
- Automatic calibration of braille interface11 Aug 2026US 12,704,924 B2Intel Corporation
- Braille writing device17 Mar 2026US 12,579,906 B2
- Digital microfludics-based braille actuation in a stretchable display17 Feb 2026US 12,555,492 B2International Business Machines Corporation
- Electro magnetic refreshable braille reader10 Feb 2026US 12,548,467 B2Enhanced Visions Systems, Inc.
- Self-centering user interface for inputting information14 May 2026US 2026/0134762 A1Block, Inc.
- Braille display cell system14 May 2026US 2026/0134796 A1Thinkerbell Labs Private Limited
- Wearable haptic feedback device7 May 2026US 2026/0124074 A1University of Utah Research Foundation
- Method and device for capturing a numerical code16 Apr 2026US 2026/0105863 A1Thales Dis France SAS
- Apparatus, method, and storage medium12 Jun 2025US 2025/0187348 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Method and apparatus for a gesture controlled interface for wearable devices100US 9,720,515 B2Wearable Devices Ltd. · 2017
- Chording keyboard for generating binary data85US 4,467,321 A1984
- Element with expansible relief60US 6,877,986 B2Commissariat A L' Energie Atomique · 2005
- Tactile device54US 7,471,280 B2Koninklijke Philips Electronics N. V. · 2008
- Portable braille computer device53US 6,542,623 B12003