A61F 2/1656
Fresnel lenses, prisms or plates
Official title: {Fresnel lenses, prisms or plates}
A61F2/1656 (Fresnel lenses, prisms or plates) appears on 99 US grants and 122 published applications in this corpus.
Search patents in A61F- Granted patents
- 99
- Published applications
- 122
- Assignees
- 44
- Inventors
- 141
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 4 |
| 2013 | 1 | 0 |
| 2014 | 1 | 3 |
| 2015 | 3 | 7 |
| 2016 | 4 | 7 |
| 2017 | 3 | 6 |
| 2018 | 5 | 11 |
| 2019 | 9 | 10 |
| 2020 | 8 | 4 |
| 2021 | 7 | 17 |
| 2022 | 8 | 8 |
| 2023 | 9 | 14 |
| 2024 | 8 | 10 |
| 2025 | 11 | 5 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Diffractive eye lens1 Sep 2026US 12,721,721 B2Carl Zeiss Meditec AG
- Lenses having diffractive profiles with irregular width for vision treatment16 Jun 2026US 12,653,665 B2AMO Groningen B. V.
- Multifocal lens28 Apr 2026US 12,611,297 B2Hoya Medical Singapore Pte. Ltd.
- Multifocal intraocular lens24 Mar 2026US 12,582,516 B2Hanita Lenses Ltd.
- High definition and extended depth of field intraocular lens17 Mar 2026US 12,575,924 B2Z Optics, Inc.
- Lenses having diffractive profiles with irregular width for vision treatment24 Sep 2026US 2026/0283787 A1AMO Groningen B. V.
- A synergistic pair of multifocal diffractive ocular lenses30 Jul 2026US 2026/0219515 A1VSY Biyoteknoloji ve Ilac Sanayi A.S.
- Intraocular lens system18 Jun 2026US 2026/0165832 A1Sharpview Ophthalmology Limited
- High definition and extended depth of field via subsurface modification of intraocular lens11 Jun 2026US 2026/0157846 A1Z Optics, Inc.
- Intraocular lens that improves overall vision where there is a local loss of retinal function28 May 2026US 2026/0144629 A1AMO Groningen B. V.
Most cited
By later US patents
- Intraocular lens345US 4,787,903 A1988
- Multifocal multizone diffractive ophthalmic lenses207US 5,096,285 AIolab Corporation · 1992
- Laminate optic with interior Fresnel lens187US 4,828,558 A1989
- Lens conversion system for teledioptic or difractive configurations171US 6,197,057 B12001
- Prismatic intraocular lenses and related methods of in situ alteration of their optical characteristics159US 5,728,156 APrism Opthalmics, L.L.C. · 1998