G09B 21/001
Teaching or communicating with blind persons
Official title: {Teaching or communicating with blind persons (G09B21/02 - G09B21/06 take precedence)}
G09B21/001 (Teaching or communicating with blind persons) appears on 1,800 US grants and 1,963 published applications in this corpus.
Search patents in G09B- Granted patents
- 1,800
- Published applications
- 1,963
- Assignees
- 856
- Inventors
- 3,931
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 10 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 12 | 0 |
| 1987 | 12 | 0 |
| 1988 | 11 | 0 |
| 1989 | 11 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 13 | 0 |
| 1993 | 19 | 0 |
| 1994 | 17 | 0 |
| 1995 | 19 | 0 |
| 1996 | 25 | 0 |
| 1997 | 19 | 0 |
| 1998 | 25 | 0 |
| 1999 | 23 | 0 |
| 2000 | 22 | 0 |
| 2001 | 19 | 3 |
| 2002 | 24 | 31 |
| 2003 | 14 | 31 |
| 2004 | 23 | 31 |
| 2005 | 17 | 41 |
| 2006 | 23 | 49 |
| 2007 | 16 | 45 |
| 2008 | 27 | 55 |
| 2009 | 17 | 56 |
| 2010 | 33 | 63 |
| 2011 | 27 | 57 |
| 2012 | 53 | 75 |
| 2013 | 58 | 103 |
| 2014 | 73 | 114 |
| 2015 | 89 | 116 |
| 2016 | 84 | 113 |
| 2017 | 86 | 118 |
| 2018 | 94 | 143 |
| 2019 | 123 | 121 |
| 2020 | 133 | 119 |
| 2021 | 87 | 93 |
| 2022 | 114 | 119 |
| 2023 | 75 | 99 |
| 2024 | 71 | 73 |
| 2025 | 64 | 56 |
| 2026 | 46 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G09B 21/003Using tactile presentation of the information928
- G09B 21/006Using audible presentation of the information544
- G09B 21/008Using visual presentation of the information for the partially sighted345
- G09B 21/007Using both tactile and audible presentation of the information226
- G09B 21/002Writing aids for blind persons30
Recent patents
- Systems and methods for interactive digital maps29 Sep 2026US 12,747,959 B2
- Augmented reality panorama systems and methods22 Sep 2026US 12,740,913 B2Nant Holdings IP, LLC
- Device for aiding visually impaired or blind persons while shopping22 Sep 2026US 12,743,721 B2VusionGroup GmbH
- Braille timer22 Sep 2026US 12,743,965 B2Time Timer, LLC
- Visual assistance system22 Sep 2026US 12,745,058 B2
- Assistive Technology for Low Vision and Alternate Sensory Input24 Sep 2026US 2026/0287383 A1
- System24 Sep 2026US 2026/0290307 A1SoftBank Group Corp.
- Augmented reality virtual reality ray tracing sensory enhancement system, apparatus and method17 Sep 2026US 2026/0281652 A1Intel Corporation
- Color enhancement algorithm for color-deficient people27 Aug 2026US 2026/0253187 A1Apple Inc.
- Mobile component testing20 Aug 2026US 2026/0244521 A1Evinced, Inc.
Most cited
By later US patents
- System and method for tracking a pedestrian581US 5,470,233 AArkenstone, Inc. · 1995
- Voice-output reading system with gesture-based navigation446US 6,115,482 AAscent Technology, Inc. · 2000
- Automatic bank teller machine for the blind and visually impaired434US 6,061,666 ACiticorp Development Center, Inc. · 2000
- Three-dimensional mouse with tactile feedback384US 5,296,871 A1994
- Method and system for providing touch-sensitive screens for the visually impaired348US 6,489,951 B1Microsoft Corporation · 2002