H04Q 3/685
Circuit arrangements therefor
Official title: {Circuit arrangements therefor}
H04Q3/685 (Circuit arrangements therefor) appears on 26 US grants and 1 published applications in this corpus.
Search patents in H04Q- Granted patents
- 26
- Published applications
- 1
- Assignees
- 21
- Inventors
- 43
- Latest grant
- 28 Aug 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 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 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Distributed multi-stage switch fabric28 Aug 2018US 10,063,494 B1Juniper Networks, Inc.
- Distributed multi-stage switch fabric29 Dec 2015US 9,225,666 B1Juniper Networks, Inc.
- Augmented ring-banyan network and method for controlling routing therein13 May 2003US 6,563,819 B1Samsung Electronics Co., Ltd.
- Mechanism and procedure for detecting switch mis-cabling30 Apr 2002US 6,381,643 B1International Business Machines Corporation
- Increasing probability multi-stage network1 May 2001US 6,226,683 B1International Business Machines Corporation
Most cited
By later US patents
- Switching fabric123US 6,157,643 ANokia Telecommunications Oy · 2000
- Connection path selection method for cross-connect communications networks76US 5,408,231 AAlcatel Network Systems, Inc. · 1995
- High performance fault tolerant switching system for multimedia satellite and terrestrial communications networks70US 6,026,092 ANorthern Telecom Limited · 2000
- N+K sparing in a telecommunications switching environment69US 5,229,990 AAT&T Bell Laboratories · 1993
- N+K sparing in a telecommunications switching environment67US 5,331,631 AAT&T Bell Laboratories · 1994