G02B 15/144
Having four groups only
Official title: {having four groups only}
G02B15/144 (Having four groups only) appears on 1,970 US grants and 1,643 published applications in this corpus.
Search patents in G02B- Granted patents
- 1,970
- Published applications
- 1,643
- Assignees
- 172
- Inventors
- 1,096
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 8 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 5 | 0 |
| 1983 | 11 | 0 |
| 1984 | 9 | 0 |
| 1985 | 11 | 0 |
| 1986 | 15 | 0 |
| 1987 | 26 | 0 |
| 1988 | 19 | 0 |
| 1989 | 19 | 0 |
| 1990 | 9 | 0 |
| 1991 | 13 | 0 |
| 1992 | 24 | 0 |
| 1993 | 28 | 0 |
| 1994 | 23 | 0 |
| 1995 | 16 | 0 |
| 1996 | 32 | 0 |
| 1997 | 27 | 0 |
| 1998 | 42 | 0 |
| 1999 | 40 | 0 |
| 2000 | 45 | 0 |
| 2001 | 36 | 15 |
| 2002 | 32 | 21 |
| 2003 | 33 | 40 |
| 2004 | 38 | 47 |
| 2005 | 29 | 60 |
| 2006 | 50 | 70 |
| 2007 | 76 | 89 |
| 2008 | 92 | 102 |
| 2009 | 82 | 95 |
| 2010 | 83 | 105 |
| 2011 | 85 | 127 |
| 2012 | 109 | 110 |
| 2013 | 105 | 83 |
| 2014 | 88 | 87 |
| 2015 | 83 | 85 |
| 2016 | 75 | 48 |
| 2017 | 59 | 44 |
| 2018 | 40 | 55 |
| 2019 | 46 | 43 |
| 2020 | 34 | 49 |
| 2021 | 39 | 48 |
| 2022 | 49 | 67 |
| 2023 | 40 | 42 |
| 2024 | 47 | 43 |
| 2025 | 42 | 46 |
| 2026 | 31 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Zoom lens and image pickup apparatus22 Sep 2026US 12,742,951 B2Canon Kabushiki Kaisha
- Finder and imaging apparatus22 Sep 2026US 12,743,003 B2FUJIFILM Corporation
- Composite optical element and optical system including the same1 Sep 2026US 12,724,245 B2Canon Kabushiki Kaisha
- Zoom optical system, optical apparatus, imaging apparatus and method for manufacturing the zoom optical system1 Sep 2026US 12,724,251 B2Nikon Corporation
- Zoom optical system, optical apparatus and method for manufacturing the zoom optical system1 Sep 2026US 12,724,252 B2Nikon Corporation
- 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 apparatus including the same24 Sep 2026US 2026/0287867 A1Canon Kabushiki Kaisha
- Zoom lens and image pickup apparatus3 Sep 2026US 2026/0259396 A1Canon Kabushiki Kaisha
- Lens device and imaging apparatus3 Sep 2026US 2026/0261749 A1FUJIFILM Corporation
Most cited
By later US patents
- Zoom lens141US 5,000,551 ANikon Corporation · 1991
- Zoom lens102US 5,268,792 AEastman Kodak Company · 1993
- Mini-zoom projection lenses for use with pixelized panels97US 5,900,989 AU. S. Precision Lens, Inc. · 1999
- Projection lenses for use with large pixelized panels90US 6,023,375 AU. S. Precision Lens, Inc. · 2000
- Taking lens apparatus80US 6,404,561 B1Minolta Co., Ltd. · 2002