G02B 15/1465
The first group being negative
Official title: {the first group being negative}
G02B15/1465 (The first group being negative) appears on 162 US grants and 188 published applications in this corpus.
Search patents in G02B- Granted patents
- 162
- Published applications
- 188
- Assignees
- 35
- Inventors
- 155
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 2 |
| 2003 | 2 | 2 |
| 2004 | 3 | 1 |
| 2005 | 0 | 4 |
| 2006 | 4 | 4 |
| 2007 | 6 | 10 |
| 2008 | 6 | 7 |
| 2009 | 13 | 6 |
| 2010 | 2 | 6 |
| 2011 | 3 | 8 |
| 2012 | 5 | 1 |
| 2013 | 7 | 9 |
| 2014 | 7 | 8 |
| 2015 | 5 | 9 |
| 2016 | 8 | 11 |
| 2017 | 16 | 7 |
| 2018 | 4 | 10 |
| 2019 | 8 | 6 |
| 2020 | 7 | 16 |
| 2021 | 13 | 5 |
| 2022 | 6 | 16 |
| 2023 | 7 | 11 |
| 2024 | 6 | 6 |
| 2025 | 10 | 12 |
| 2026 | 10 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Projection optical system and projector6 Oct 2026US 12,754,405 B2Seiko Epson Corporation
- Composite optical element and optical system including the same1 Sep 2026US 12,724,245 B2Canon Kabushiki Kaisha
- Composite optical element and optical system including the same30 Jun 2026US 12,669,684 B2Canon Kabushiki Kaisha
- Projection system and projector16 Jun 2026US 12,656,588 B2Seiko Epson Corporation
- Projection system and projector9 Jun 2026US 12,650,582 B2Seiko Epson Corporation
- Composite optical element and optical system including the same1 Oct 2026US 2026/0299264 A1Canon Kabushiki Kaisha
- Variable magnification optical system and imaging apparatus13 Aug 2026US 2026/0235857 A1FUJIFILM Corporation
- Zoom optical system, optical apparatus and method for manufacturing the zoom optical system18 Jun 2026US 2026/0169272 A1Nikon Corporation
- Zoom lens and image capture apparatus having the same18 Jun 2026US 2026/0169274 A1Canon Kabushiki Kaisha
- Zoom lens and image pickup apparatus21 May 2026US 2026/0140351 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Wide-angle attachment for varifocal objective27US 4,110,005 ABolex International SA · 1978
- Zoom lens for variable power copying apparatus21US 4,997,265 ARicoh Company, Ltd. · 1991
- Zoom lens and image projection apparatus including the same21US 7,079,324 B2Canon Kabushiki Kaisha · 2006
- Zoom lens system and projection apparatus using the same18US 6,639,737 B2Canon Kabushiki Kaisha · 2003
- Zoom lens and image projection apparatus having the same12US 7,016,118 B2Canon Kabushiki Kaisha · 2006