H04Q 3/602
Circuit arrangements therefor
Official title: {Circuit arrangements therefor}
H04Q3/602 (Circuit arrangements therefor) appears on 6 US grants and 4 published applications in this corpus.
Search patents in H04Q- Granted patents
- 6
- Published applications
- 4
- Assignees
- 6
- Inventors
- 27
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 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 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Multi-die non-blocking crossbar switch8 Apr 2025US 12,273,668 B2Xilinx, Inc.
- System and method for line-conducted digital communication4 Jun 1996US 5,523,869 Ake Kommunikations-Elektronik GmbH & Co.
- Message information terminating system3 Oct 1995US 5,455,824 AFujitsu Limited
- System for multiplexed communication between exchanges25 Jul 1995US 5,436,889 AHitachi, Ltd.
- Method and apparatus for starting switching system19 Mar 1991US 5,001,740 AFujitsu Limited
- Multi-die non-blocking crossbar switch20 Jun 2024US 2024/0205570 A1Xilinx, Inc.
- Remote terminal multiplexer/de-multiplexer having protection bus17 Jun 2004US 2004/0114510 A1
- Communication control methd for notifying calling telephone number, terminal device and recording medium19 Feb 2004US 2004/0032938 A1Fujitsu Limited
- Communication control method for notifying calling telephone number, terminal device and recording medium11 Oct 2001US 2001/0028707 A1
Most cited
By later US patents
- Test access system for a digital loop carrier system48US 4,949,355 ARockwell International Corporation · 1990
- System for multiplexed communication between exchanges10US 5,436,889 AHitachi, Ltd. · 1995
- Message information terminating system6US 5,455,824 AFujitsu Limited · 1995
- System and method for line-conducted digital communication6US 5,523,869 Ake Kommunikations-Elektronik GmbH & Co. · 1996
- Method and apparatus for starting switching system5US 5,001,740 AFujitsu Limited · 1991