G02B 9/52
The rear + component being compound
Official title: the rear + component being compound
G02B9/52 (The rear + component being compound) appears on 4 US grants and 1 published applications in this corpus.
Search patents in G02B- Granted patents
- 4
- Published applications
- 1
- Assignees
- 4
- Inventors
- 6
- Latest grant
- 5 Feb 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 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 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Rear converter lens and imaging apparatus5 Feb 2019US 10,197,893 B2FUJIFILM Corporation
- Reading lens system for use in scanner20 Aug 1991US 5,040,884 ARicoh Company, Ltd.
- Focusing-in-part lens system15 Nov 1988US 4,784,480 ACanon Kabushiki Kaisha
- Photographic camera lens system having a short total length11 Nov 1980US 4,232,945 AOlympus Optical Co., Ltd.
Most cited
By later US patents
- Focusing-in-part lens system9US 4,784,480 ACanon Kabushiki Kaisha · 1988
- Photographic camera lens system having a short total length3US 4,232,945 AOlympus Optical Co., Ltd. · 1980
- Rear converter lens and imaging apparatus2US 10,197,893 B2FUJIFILM Corporation · 2019
- Reading lens system for use in scanner1US 5,040,884 ARicoh Company, Ltd. · 1991