A61F 9/023
With variable transmission
Official title: {with variable transmission, e.g. photochromic (for welding A61F9/067)}
A61F9/023 (With variable transmission) appears on 88 US grants and 66 published applications in this corpus.
Search patents in A61F- Granted patents
- 88
- Published applications
- 66
- Assignees
- 56
- Inventors
- 182
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 2 | 3 |
| 2011 | 1 | 1 |
| 2012 | 2 | 5 |
| 2013 | 2 | 5 |
| 2014 | 2 | 4 |
| 2015 | 2 | 1 |
| 2016 | 2 | 5 |
| 2017 | 4 | 6 |
| 2018 | 2 | 2 |
| 2019 | 5 | 6 |
| 2020 | 5 | 4 |
| 2021 | 3 | 3 |
| 2022 | 3 | 1 |
| 2023 | 1 | 3 |
| 2024 | 3 | 6 |
| 2025 | 4 | 4 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Type GH liquid crystal protective glasses and covering structural frame23 Jun 2026US 12,661,267 B2Out of S.R.L.
- Goggles device, goggles, method for operation28 Apr 2026US 12,613,434 B2Optrel Holding AG
- Head-mounted display with a center-mounted system for peripheral projection6 Jan 2026US 12,517,368 B1RealWear, Inc.
- Eye protection mask for practicing winter sports20 May 2025US 12,306,476 B2Out of S.R.L.
- Electronic spectacles8 Apr 2025US 12,271,063 B2Inoptec Limited Zweigniederlassung Deutschland
- Lens structures and optical systems25 Dec 2025US 2025/0389926 A1Alphamicron Incorporated
- Liquid crystal tintable goggles30 Oct 2025US 2025/0332030 A1Bell Sports, Inc.
- Protective eyewear for high intensity sources12 Jun 2025US 2025/0186260 A1
- Laser protection device, in particular laser protection helmet23 Jan 2025US 2025/0025346 A1Optrel Holding AG
- Type gh liquid crystal protective glasses and covering structural frame7 Nov 2024US 2024/0366430 A1Out of S.R.L.
Most cited
By later US patents
- Intelligent electro-optical system and method for automatic glare reduction598US 5,305,012 AReveo, Inc. · 1994
- Spectacle lens having continuously variable controlled density and fast response time257US 4,279,474 A1981
- Optical lens structure and control system for maintaining a selected constant level of transmitted light at a wearer's eyes218US 5,654,786 A1997
- Controllable, variable transmissivity eyewear195US 4,968,127 A1990
- System and method for varying the reflectance or transmittance of light162US 7,411,637 B2ELOP Electro-Optics Industries Ltd. · 2008