G11B 15/68
Automatic cassette changing arrangements
Official title: Automatic cassette changing arrangements; {automatic tape changing arrangements}
G11B15/68 (Automatic cassette changing arrangements) appears on 1,485 US grants and 847 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,485
- Published applications
- 847
- Assignees
- 204
- Inventors
- 1,538
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 7 | 0 |
| 1978 | 11 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 9 | 0 |
| 1989 | 12 | 0 |
| 1990 | 19 | 0 |
| 1991 | 33 | 0 |
| 1992 | 18 | 0 |
| 1993 | 27 | 0 |
| 1994 | 33 | 0 |
| 1995 | 49 | 0 |
| 1996 | 33 | 0 |
| 1997 | 45 | 0 |
| 1998 | 49 | 0 |
| 1999 | 54 | 0 |
| 2000 | 69 | 0 |
| 2001 | 55 | 12 |
| 2002 | 74 | 56 |
| 2003 | 73 | 90 |
| 2004 | 72 | 77 |
| 2005 | 52 | 81 |
| 2006 | 62 | 52 |
| 2007 | 48 | 54 |
| 2008 | 43 | 38 |
| 2009 | 46 | 38 |
| 2010 | 34 | 39 |
| 2011 | 31 | 39 |
| 2012 | 47 | 37 |
| 2013 | 42 | 40 |
| 2014 | 55 | 37 |
| 2015 | 36 | 21 |
| 2016 | 38 | 22 |
| 2017 | 21 | 12 |
| 2018 | 23 | 39 |
| 2019 | 36 | 15 |
| 2020 | 17 | 8 |
| 2021 | 11 | 9 |
| 2022 | 10 | 5 |
| 2023 | 12 | 14 |
| 2024 | 13 | 6 |
| 2025 | 3 | 4 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G11B 15/682With fixed magazines having fixed cassette storage cells887
- G11B 15/689Control of the cassette changing arrangement259
- G11B 15/6845With rotatable magazine149
- G11B 15/6885The cassettes being conveyed within a cassette storage location142
- G11B 15/6805With linearly moving rectangular box shaped magazines83
- G11B 15/6895Automatic tape changing arrangements45
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Most cited
By later US patents
- Mass data storage and retrieval system997US 5,504,873 AE-Systems, Inc. · 1996
- Media element library with non-overlapping subset of media elements and non-overlapping subset of media element drives accessible to first host and unaccessible to second host963US 6,328,766 B1Overland Data, Inc. · 2001
- System for random access to an audio video data library with independent selection and display at each of a plurality of remote locations499US 4,920,432 A1990
- Cartridge transferring robot for library apparatus340US 6,022,180 AFujitsu Limited · 2000
- Video recording system332US 4,688,105 A1987