H04M 3/62
Keyboard equipment
Official title: Keyboard equipment {(in key telephone systems H04M9/003)}
H04M3/62 (Keyboard equipment) appears on 38 US grants and 6 published applications in this corpus.
Search patents in H04M- Granted patents
- 38
- Published applications
- 6
- Assignees
- 27
- Inventors
- 87
- Latest grant
- 22 Mar 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method for providing the precise location of a cell phone making an emergency call22 Mar 2011US 7,912,185 B2Celphinder Technologies, Inc.
- Communications apparatus7 Sep 2004US 6,788,780 B1Siemens Aktiengesellschaft
- Personalized automated operator position25 Nov 2003US 6,654,828 B2Golden Voice Technology and Training L.L.C.
- Busy line display method18 Mar 2003US 6,535,595 B1Hitachi Communications Technologies, Ltd.
- Method and apparatus for displaying a visual indication of a transmission status21 Nov 2000US 6,151,357 AAspect Communications Corporation
- Public pay smart phone kiosk24 Mar 2016US 2016/0088164 A1Ttc Holding Company, Inc.
- Multi-number wireless communications system and method3 May 2007US 2007/0099638 A1
- System and method for providing the precise location of a cell phone making an emergency call4 Jan 2007US 2007/0004379 A1Celphinder Technologies, Inc.
- Personalized automated operator position16 Jan 2003US 2003/0014567 A1Golden Voice Technology and Training L.L.C.
- 911 Celphinder12 Sep 2002US 2002/0127994 A1
Most cited
By later US patents
- Customer programmable automated integrated voice/data technique for communication systems281US 5,001,710 AAT&T Bell Laboratories · 1991
- Customer definable integrated voice/data call transfer technique222US 5,008,930 AAT&T Bell Laboratories · 1991
- Arrangement for automating call-center agent-schedule-notification and schedule-adherence functions208US 5,499,291 AAT&T Corp. · 1996
- Attendant console for telephone exchange98US 5,046,087 ANEC Corporation · 1991
- Line-based public safety answering point73US 5,311,569 AAT&T Bell Laboratories · 1994