H04Q 2213/204
Isdn protocol
Official title: ISDN protocol; ISO 7
H04Q2213/204 (Isdn protocol) appears on 42 US grants and 1 published applications in this corpus.
Search patents in H04Q- Granted patents
- 42
- Published applications
- 1
- Assignees
- 17
- Inventors
- 72
- Latest grant
- 10 Apr 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Telephone call processing modifications related to call acceptance for an incoming call received at a contact center10 Apr 2018US 9,942,402 B1Noble Systems Corporation
- Telephone call processing modifications related to call acceptance for an incoming call received at a contact center15 Aug 2017US 9,736,307 B1Noble Systems Corporation
- Telephone call processing modifications related to call acceptance for an incoming call received at a contact center31 Jan 2017US 9,560,210 B1Noble Systems Corporation
- Picture codec and teleconference terminal equipment4 Sep 2001US 6,285,391 B1Hitachi, Ltd.
- Picture codec and teleconference terminal equipment19 Jun 2001US 6,249,309 B1Hitachi, Ltd.
Most cited
By later US patents
- ISDN-based system for making a video call147US 5,371,534 AAT&T Corp. · 1994
- Data communication apparatus which can use either an analog or a digital line80US 5,142,568 ACanon Kabushiki Kaisha · 1992
- Call service initialization arrangement56US 5,012,466 AAT&T Bell Laboratories · 1991
- Television telephone46US 5,396,269 AHitachi, Ltd. · 1995
- Voice and video communication apparatus42US 5,510,829 ACanon Kabushiki Kaisha · 1996