H04Q 11/02
Selecting arrangements for multiplex systems: for frequency-division multiplexing
Official title: for frequency-division multiplexing {(H04Q11/0001 takes precedence)}
H04Q11/02 (Selecting arrangements for multiplex systems: for frequency-division multiplexing) appears on 73 US grants and 57 published applications in this corpus.
Search patents in H04Q- Granted patents
- 73
- Published applications
- 57
- Assignees
- 49
- Inventors
- 118
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 8 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 3 | 2 |
| 2007 | 0 | 0 |
| 2008 | 2 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 2 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 3 | 0 |
| 2018 | 0 | 5 |
| 2019 | 1 | 11 |
| 2020 | 11 | 9 |
| 2021 | 9 | 3 |
| 2022 | 3 | 3 |
| 2023 | 3 | 3 |
| 2024 | 4 | 5 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Front end architecture for selectively adding external carrier aggregation band4 Nov 2025US 12,463,668 B2Skyworks Solutions, Inc.
- Scaling subscriber handling capacity and throughput in a cloud native radio access network2 Sep 2025US 12,408,076 B2Rakuten Symphony, Inc.
- Gateway apparatus and methods for wireless IoT (internet of things) services23 Jul 2024US 12,047,719 B2Charter Communications Operating, LLC
- Apparatus and methods for enhancing quality of experience for data services over high-capacity wireless networks16 Jul 2024US 12,041,398 B2Charter Communications Operating, LLC
- Front end architecture for selectively adding external carrier aggregation band30 Apr 2024US 11,973,522 B2Skyworks Solutions, Inc.
- Scaling subscriber handling capacity and throughput in a cloud native radio access network2 Oct 2025US 2025/0310832 A1Rakuten Symphony, Inc.
- Common local oscillator chip, cascading structure and working method1 May 2025US 2025/0141477 A1Airtouch Intelligent Technology (Shanghai) Co., Ltd.
- Gateway apparatus and methods for wireless iot (internet of things) services21 Nov 2024US 2024/0388822 A1Charter Communications Operating, LLC
- Front end architecture for selectively adding external carrier aggregation band29 Aug 2024US 2024/0291507 A1Skyworks Solutions, Inc.
- Apparatus and methods for integrated high-capacity data and wireless iot (internet of things) services22 Aug 2024US 2024/0284082 A1Charter Communications Operating, LLC
Most cited
By later US patents
- Method and apparatus for delivering passband and telephony signals in a coaxial cable network221US 5,440,335 AU S West Advanced Technologies, Inc. · 1995
- Method and apparatus for delivering secured telephone service in hybrid coaxial cable network147US 5,469,495 AU S West Advanced Technologies, Inc. · 1995
- Data communication system with increased effective bandwidth135US 4,521,881 AWang Laboratories, Inc. · 1985
- Method and apparatus for selectively delivering telephony signals on a hybrid coaxial cable network125US 5,592,540 AU S West Advanced Technologies, Inc. · 1997
- Conferencing apparatus and methods for a frequency division multiplex communications system100US 4,339,816 AInternational Telephone and Telegraph Corporation · 1982