G03B 21/111
Of roll films
Official title: {of roll films}
G03B21/111 (Of roll films) appears on 103 US grants and 1 published applications in this corpus.
Search patents in G03B- Granted patents
- 103
- Published applications
- 1
- Assignees
- 24
- Inventors
- 160
- Latest grant
- 7 May 2002
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 8 | 0 |
| 1989 | 4 | 0 |
| 1990 | 9 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Microfilm search device7 May 2002US 6,384,896 B1Unisia Jecs Corporation
- Image display apparatus24 Apr 2001US 6,222,509 B1Canon Kabushiki Kaisha
- Microfilm search device and method5 Sep 2000US 6,115,105 AFuji Photo Film Co., Ltd.
- High speed optical image selection system27 Jun 2000US 6,079,834 A
- Microfilm search method and device21 Dec 1999US 6,003,994 AFuji Photo Film Co., Ltd.
Most cited
By later US patents
- Microfilm and microfilm printer35US 4,693,591 AMinolta Camera Kabushiki Kaisha · 1987
- Carrying device and carrying method20US 5,813,817 AFuji Photo Film Co., Ltd. · 1998
- Manual and power motivated drive means14US 4,265,142 AMinolta Camera Kabushiki Kaisha · 1981
- Microfilm retrieval system14US 4,353,642 A1982
- Film image projecting apparatus for handling a roll film containing a plurality of rows of frames13US 4,825,243 AMinolta Camera Kabushiki Kaisha · 1989