H04Q 3/645
Circuit arrangements therefor
Official title: {Circuit arrangements therefor}
H04Q3/645 (Circuit arrangements therefor) appears on 11 US grants and 5 published applications in this corpus.
Search patents in H04Q- Granted patents
- 11
- Published applications
- 5
- Assignees
- 9
- Inventors
- 16
- Latest grant
- 1 Nov 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 2 | 0 |
| 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 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Communication system for automation and process engineering, and Y selector switch unit for such a communication system1 Nov 2022US 11,490,174 B2Ifm Electronic GmbH
- Dissimilar switch stacking system18 Apr 2017US 9,628,408 B2Dell Products L. P.
- Dissimilar switch stacking system21 Jun 2016US 9,374,631 B2Dell Products L. P.
- Load distribution between nodes in communication networks6 Jul 2010US 7,751,314 B2Telefonaktiebolaget LM Ericsson (publ)
- Process for including functions of an automatic call distributor system in an interactive voice response system9 Aug 2005US 6,928,155 B1Siemens Aktiengesellschaft
- Communication system for automation and process engineering, and y selector switch unit for such a communication system24 Jun 2021US 2021/0195302 A1Ifm Electronic GmbH
- Dissimilar switch stacking system8 Sep 2016US 2016/0261524 A1Dell Products L. P.
- Dissimilar switch stacking system11 Dec 2014US 2014/0362852 A1Dell Products L. P.
- Load distribution between nodes in communication networks6 May 2004US 2004/0087311 A1Telefonaktiebolaget LM Ericsson (publ)
- Apparatus and method for broadcasting an emergency warning over a telephone network28 Nov 2002US 2002/0176545 A1
Most cited
By later US patents
- Order processing and reporting system for telecommunications carrier services96US 6,104,798 AMCI Communications Corporation · 2000
- Method and system for informing callers within a queue62US 6,847,715 B1Interactive Intelligence, Inc. · 2005
- Call progress pacing56US 5,179,589 AInternational Telesystems Corporation · 1993
- Switch control circuit and control method of ATM switchboard55US 6,122,251 ANEC Corporation · 2000
- Method for pacing calls to reduce nuisance calls12US 5,327,491 AInternational Telesystems Corporation · 1994