G11B 25/02
Apparatus characterised by the shape of record carrier employed but not specific
Official title: using cylindrical record carriers
G11B25/02 (Apparatus characterised by the shape of record carrier employed but not specific) appears on 18 US grants and 2 published applications in this corpus.
Search patents in G11B- Granted patents
- 18
- Published applications
- 2
- Assignees
- 11
- Inventors
- 29
- Latest grant
- 9 May 2006
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Frictionless, non-destructive playback system for cylinder recordings9 May 2006US 7,042,811 B2Syracuse University
- Coin disks14 Aug 2001US 6,273,248 B1Unversity of Central Florida
- Apparatus and method for recording and playing back sound6 Feb 2001US 6,185,179 B2
- Coin disks27 Jun 2000US 6,081,410 AUniversity of Central Florida
- Segmented audio and visual compact disks30 Jun 1998US 5,774,446 A
Most cited
By later US patents
- Computer disk with security protection25US 4,967,184 AEastman Kodak Company · 1990
- Recording and/or reproducing apparatus20US 4,567,535 AVictor Company of Japan, Ltd. · 1986
- Three-dimensional optical data storage and retrieval8US 5,592,462 A1997
- Information storage device6US 5,034,943 AInstitut Problem Modelirovania V Energetike Akademii Nauk Ukrainskoi SSR · 1991
- Recording medium for recording and/or reproducing apparatus5US 4,604,667 AVictor Company of Japan, Ltd. · 1986