H04M 3/326
For registers and translators
Official title: {for registers and translators}
H04M3/326 (For registers and translators) appears on 4 US grants and 2 published applications in this corpus.
Search patents in H04M- Granted patents
- 4
- Published applications
- 2
- Assignees
- 3
- Inventors
- 7
- Latest grant
- 15 Apr 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 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 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Systems and methods for facilitating placement of telecommunications test calls15 Apr 2008US 7,359,490 B2AT&T Delaware Intellectual Property, Inc.
- Systems and methods for facilitating placement of telecommunications test calls10 Apr 2007US 7,203,284 B2BellSouth Intellectual Property Corporation
- DTMF receiver sense and control maintenance arrangement4 Nov 1986US 4,621,354 AGTE Communication Systems Corporation
- Short circuit indicator for a terminator matrix30 Aug 1977US 4,045,623 A
- Systems and methods for facilitating placement of telecommunications test calls16 Aug 2007US 2007/0189465 A1BellSouth Intellectual Property Corporation
- Systems and methods for facilitating placement of telecommunications test calls2 Sep 2004US 2004/0170256 A1BellSouth Intellectual Property Corporation
Most cited
By later US patents
- DTMF receiver sense and control maintenance arrangement2US 4,621,354 AGTE Communication Systems Corporation · 1986
- Short circuit indicator for a terminator matrix1US 4,045,623 A1977
- Systems and methods for facilitating placement of telecommunications test calls1US 7,203,284 B2BellSouth Intellectual Property Corporation · 2007