G02B 15/177
Having a negative front lens or group of lenses
Official title: having a negative front lens or group of lenses
G02B15/177 (Having a negative front lens or group of lenses) appears on 886 US grants and 780 published applications in this corpus.
Search patents in G02B- Granted patents
- 886
- Published applications
- 780
- Assignees
- 115
- Inventors
- 563
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 14 | 0 |
| 1995 | 3 | 0 |
| 1996 | 16 | 0 |
| 1997 | 9 | 0 |
| 1998 | 20 | 0 |
| 1999 | 15 | 0 |
| 2000 | 16 | 0 |
| 2001 | 20 | 15 |
| 2002 | 16 | 19 |
| 2003 | 28 | 27 |
| 2004 | 26 | 30 |
| 2005 | 27 | 50 |
| 2006 | 39 | 36 |
| 2007 | 42 | 47 |
| 2008 | 43 | 38 |
| 2009 | 43 | 40 |
| 2010 | 27 | 42 |
| 2011 | 34 | 35 |
| 2012 | 35 | 48 |
| 2013 | 40 | 32 |
| 2014 | 37 | 62 |
| 2015 | 45 | 35 |
| 2016 | 28 | 23 |
| 2017 | 35 | 20 |
| 2018 | 17 | 26 |
| 2019 | 25 | 23 |
| 2020 | 16 | 33 |
| 2021 | 31 | 19 |
| 2022 | 23 | 20 |
| 2023 | 12 | 16 |
| 2024 | 15 | 13 |
| 2025 | 18 | 17 |
| 2026 | 7 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Zoom lens and imaging apparatus29 Sep 2026US 12,748,289 B2FUJIFILM Corporation
- Rear attachment lens and image pickup optical system using the same1 Sep 2026US RE51,021 E1Canon Kabushiki Kaisha
- Zoom lens and image pickup apparatus25 Aug 2026US 12,717,123 B2Canon Kabushiki Kaisha
- Variable magnification optical system and imaging apparatus2 Jun 2026US 12,645,059 B2FUJIFILM Corporation
- Zoom lens and camera device with zoom lens7 Apr 2026US 12,596,241 B2Beijing Xiaomi Mobile Software Co., Ltd.
- Variable magnification optical system and imaging apparatus13 Aug 2026US 2026/0235857 A1FUJIFILM Corporation
- Variable magnification optical system and imaging apparatus16 Jul 2026US 2026/0202648 A1FUJIFILM Corporation
- Zoom lens and image pickup apparatus16 Jul 2026US 2026/0202649 A1Canon Kabushiki Kaisha
- Zoom lens and image pickup apparatus16 Jul 2026US 2026/0202650 A1Canon Kabushiki Kaisha
- Optical system and camera module2 Jul 2026US 2026/0186279 A1LG Innotek Co., Ltd.
Most cited
By later US patents
- Three-group zoom lens132US 6,654,180 B2Fuji Photo Optical Co., Ltd. · 2003
- Zoom lens systems95US 5,485,313 APolaroid Corporation · 1996
- Zoom lens and photographic apparatus having the same86US 6,308,011 B1Canon Kabushiki Kaisha · 2001
- Variable magnification optical zoom lens system72US 6,124,984 ANikon Corporation · 2000
- Zoom lens and optical apparatus having the same61US 6,191,896 B1Canon Kabushiki Kaisha · 2001