G02B 15/1445
The first group being negative
Official title: {the first group being negative}
G02B15/1445 (The first group being negative) appears on 500 US grants and 486 published applications in this corpus.
Search patents in G02B- Granted patents
- 500
- Published applications
- 486
- Assignees
- 91
- Inventors
- 430
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 13 | 0 |
| 1999 | 10 | 0 |
| 2000 | 8 | 0 |
| 2001 | 9 | 5 |
| 2002 | 3 | 6 |
| 2003 | 8 | 5 |
| 2004 | 5 | 16 |
| 2005 | 10 | 20 |
| 2006 | 12 | 21 |
| 2007 | 28 | 29 |
| 2008 | 35 | 31 |
| 2009 | 26 | 21 |
| 2010 | 16 | 33 |
| 2011 | 18 | 21 |
| 2012 | 24 | 35 |
| 2013 | 28 | 25 |
| 2014 | 25 | 28 |
| 2015 | 23 | 25 |
| 2016 | 24 | 15 |
| 2017 | 16 | 10 |
| 2018 | 11 | 14 |
| 2019 | 15 | 11 |
| 2020 | 7 | 12 |
| 2021 | 12 | 24 |
| 2022 | 11 | 18 |
| 2023 | 14 | 13 |
| 2024 | 16 | 18 |
| 2025 | 13 | 17 |
| 2026 | 12 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Composite optical element and optical system including the same1 Sep 2026US 12,724,245 B2Canon Kabushiki Kaisha
- Zoom optical system, optical apparatus and method for manufacturing the zoom optical system1 Sep 2026US 12,724,252 B2Nikon Corporation
- Zoom lens, image pickup apparatus, and image pickup system1 Sep 2026US 12,724,253 B2Canon Kabushiki Kaisha
- Composite optical element and optical system including the same30 Jun 2026US 12,669,684 B2Canon Kabushiki Kaisha
- Zoom lens system, and image capture device and interchangeable lens unit including the zoom lens system23 Jun 2026US 12,663,622 B2Panasonic Intellectual Property Management Co., Ltd.
- Composite optical element and optical system including the same1 Oct 2026US 2026/0299264 A1Canon Kabushiki Kaisha
- Variable magnification optical system, optical equipment, and method for producing variable magnification optical system1 Oct 2026US 2026/0299267 A1Nikon Corporation
- Zoom lens and imaging apparatus20 Aug 2026US 2026/0244005 A1Sony Group Corporation
- Variable magnification optical system and imaging apparatus13 Aug 2026US 2026/0235857 A1FUJIFILM Corporation
- Zoom lens, and image pickup apparatus having the same30 Jul 2026US 2026/0219480 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Zoom lens102US 5,268,792 AEastman Kodak Company · 1993
- Zoom lens and optical apparatus having the same61US 6,191,896 B1Canon Kabushiki Kaisha · 2001
- Wideangle four group zoom lens52US 5,132,848 ACanon Kabushiki Kaisha · 1992
- Zoom lens and optical apparatus having the same49US 6,233,099 B1Canon Kabushiki Kaisha · 2001
- Miniature camera with zoom lens44US 4,249,798 AVivitar Corporation · 1981