G02C 7/041
Bifocal
Official title: {bifocal; multifocal}
G02C7/041 (Bifocal) appears on 932 US grants and 909 published applications in this corpus.
Search patents in G02C- Granted patents
- 932
- Published applications
- 909
- Assignees
- 265
- Inventors
- 924
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 9 | 0 |
| 1990 | 12 | 0 |
| 1991 | 14 | 0 |
| 1992 | 22 | 0 |
| 1993 | 12 | 0 |
| 1994 | 8 | 0 |
| 1995 | 9 | 0 |
| 1996 | 16 | 0 |
| 1997 | 13 | 0 |
| 1998 | 24 | 0 |
| 1999 | 11 | 0 |
| 2000 | 16 | 0 |
| 2001 | 15 | 5 |
| 2002 | 9 | 11 |
| 2003 | 14 | 16 |
| 2004 | 17 | 26 |
| 2005 | 17 | 16 |
| 2006 | 21 | 18 |
| 2007 | 12 | 16 |
| 2008 | 11 | 19 |
| 2009 | 14 | 27 |
| 2010 | 17 | 28 |
| 2011 | 17 | 23 |
| 2012 | 13 | 35 |
| 2013 | 23 | 33 |
| 2014 | 40 | 31 |
| 2015 | 31 | 39 |
| 2016 | 28 | 46 |
| 2017 | 44 | 60 |
| 2018 | 30 | 50 |
| 2019 | 59 | 57 |
| 2020 | 51 | 64 |
| 2021 | 39 | 56 |
| 2022 | 35 | 58 |
| 2023 | 36 | 56 |
| 2024 | 46 | 55 |
| 2025 | 58 | 40 |
| 2026 | 35 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Intraocular lenses for presbyopia treatment22 Sep 2026US 12,740,855 B2AMO Groningen B. V.
- Diffractive eye lens1 Sep 2026US 12,721,721 B2Carl Zeiss Meditec AG
- Ophthalmic lens and method for designing an ophthalmic lens25 Aug 2026US 12,717,167 B2Carl Zeiss Meditec AG
- Ophthalmic lenses for reducing, minimizing, and/or eliminating interference on in-focus images by out-of-focus light25 Aug 2026US 12,717,168 B2Brien Holden Vision Institute Limited
- Multifocal ophthalmic lens having a plurality of layers of cured polymerizable mixture25 Aug 2026US 12,717,169 B2Atheneum Optical Sciences, LLC
- Ophthalmic lens27 Aug 2026US 2026/0251915 A1Yung Sheng Optical Co., Ltd.
- Ophthalmic lens27 Aug 2026US 2026/0251916 A1Yung Sheng Optical Co., Ltd.
- Diffractive lenses with diffractive order shift30 Jul 2026US 2026/0215910 A1AMO Groningen B. V.
- A synergistic pair of multifocal diffractive ocular lenses30 Jul 2026US 2026/0219515 A1VSY Biyoteknoloji ve Ilac Sanayi A.S.
- Method for designing a contact lens16 Jul 2026US 2026/0202681 A1Essilor International
Most cited
By later US patents
- Optical lens for correcting astigmatism451US 5,016,977 AEssilor International-Compagnie Generale · 1991
- Multifocal contact lens with aspheric surface375US 6,808,262 B2Novartis AG · 2004
- Switchable lens347US 5,712,721 AThe Technology Partnership PLC · 1998
- Multifocal diffractive ophthalmic lenses326US 5,229,797 AMinnesota Mining and Manufacturing Company · 1993
- Multifocal contact lenses utilizing diffraction and refraction324US 4,637,697 APilkington P. E. Limited · 1987