G11B 3/78
Multiple-track arrangements
G11B3/78 (Multiple-track arrangements) appears on 13 US grants and 2 published applications in this corpus.
Search patents in G11B- Granted patents
- 13
- Published applications
- 2
- Assignees
- 5
- Inventors
- 10
- Latest grant
- 5 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Gramophone plate with recorded image5 Dec 2023US 11,836,558 B2
- Image forming apparatus and method2 Mar 2010US 7,672,021 B2FUJIFILM Corporation
- Sound reproducing device for playing a record disc having a plurality of recorded grooves1 Oct 1991US 5,054,012 AOzen Corporation
- Sound reproducing device for playing a record disc having a plurality of recorded grooves24 Oct 1989US 4,876,678 AOzen Corporation
- Record disc replacing means15 Sep 1987US 4,694,444 AOzen Corporation
Most cited
By later US patents
- Sound reproduction selection apparatus for a simplified sound reproducing device6US 4,574,370 AOzen Corporation · 1986
- Multi-message phonograph system5US 4,680,747 A1987
- Sound reproducing device for playing a record disc having a plurality of recorded grooves5US 4,876,678 AOzen Corporation · 1989
- Simple acoustic playback device for a record having plurality of recording grooves4US 4,541,085 AOzen Corporation · 1985
- Record disc replacing means for a selective playing type sound reproducing device4US 4,694,445 AOzen Corporation · 1987