A61B 3/022
For testing contrast sensitivity
Official title: {for testing contrast sensitivity}
A61B3/022 (For testing contrast sensitivity) appears on 208 US grants and 237 published applications in this corpus.
Search patents in A61B- Granted patents
- 208
- Published applications
- 237
- Assignees
- 119
- Inventors
- 349
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 4 |
| 2004 | 2 | 3 |
| 2005 | 2 | 3 |
| 2006 | 1 | 1 |
| 2007 | 2 | 4 |
| 2008 | 4 | 2 |
| 2009 | 0 | 4 |
| 2010 | 5 | 7 |
| 2011 | 6 | 8 |
| 2012 | 1 | 3 |
| 2013 | 4 | 9 |
| 2014 | 7 | 6 |
| 2015 | 8 | 7 |
| 2016 | 3 | 9 |
| 2017 | 5 | 41 |
| 2018 | 6 | 11 |
| 2019 | 30 | 9 |
| 2020 | 28 | 15 |
| 2021 | 11 | 16 |
| 2022 | 19 | 24 |
| 2023 | 11 | 18 |
| 2024 | 8 | 15 |
| 2025 | 13 | 12 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ophthalmologic apparatus11 Aug 2026US 12,702,292 B2Topcon Corporation
- Ocular anomaly detection via concurrent presentation of stimuli to both eyes3 Mar 2026US 12,566,492 B2Heru Inc.
- Monocular foveal focal white and color light photobleaching10 Feb 2026US 12,543,946 B2
- Systems and methods for testing and analysis of visual acuity and its changes6 Jan 2026US 12,514,443 B2Adaptive Sensory Technology, Inc.
- Method and system for remote clinician management of head-mounted vision assist devices23 Dec 2025US 12,504,810 B2
- Systems and methods for virtual reality, augmented reality, and mixed reality based visual function assessment11 Jun 2026US 2026/0157626 A1Apellis Pharmaceuticals, Inc.
- Method, use of adapted optotypes and device for determining visual acuity characteristics of a subject2 Apr 2026US 2026/0090713 A1Rodenstock GmbH
- Methods and systems for testing contrast sensitivity using gradient patterns in virtual reality environments12 Mar 2026US 2026/0069130 A1Zenni Optical, Inc.
- Display apparatus and control method therefor19 Feb 2026US 2026/0047755 A1Samsung Electronics Co., Ltd.
- Systems and methods for testing and analysis of visual acuity and its changes5 Feb 2026US 2026/0033713 A1Adaptive Sensory Technology, Inc.
Most cited
By later US patents
- Methods and apparatus for diagnosing and remediating reading disorders103US 6,045,515 A2000
- Vision screening system87US 5,946,075 A1999
- Augmented and virtual reality display systems and methods for diagnosing a user using electrical potentials86US 10,345,592 B2Magic Leap, Inc. · 2019
- Method and apparatus for central visual field mapping and optimization of image presentation based upon mapped parameters75US 5,589,897 A1996
- Augmented and virtual reality display systems and methods for determining optical prescriptions72US 10,345,590 B2Magic Leap, Inc. · 2019