H04M 9/022
Multiplex systems
Official title: {Multiplex systems}
H04M9/022 (Multiplex systems) appears on 207 US grants and 138 published applications in this corpus.
Search patents in H04M- Granted patents
- 207
- Published applications
- 138
- Assignees
- 82
- Inventors
- 237
- Latest grant
- 28 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 13 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 9 | 2 |
| 2002 | 11 | 12 |
| 2003 | 8 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 3 |
| 2006 | 6 | 3 |
| 2007 | 3 | 53 |
| 2008 | 22 | 33 |
| 2009 | 12 | 15 |
| 2010 | 6 | 1 |
| 2011 | 10 | 3 |
| 2012 | 7 | 3 |
| 2013 | 5 | 1 |
| 2014 | 2 | 1 |
| 2015 | 2 | 2 |
| 2016 | 0 | 0 |
| 2017 | 1 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- TDD time slot splitting28 Jan 2025US 12,212,718 B2Telefonaktiebolaget LM Ericsson (publ)
- TDD time slot splitting2 Aug 2022US 11,405,508 B2Telefonaktiebolaget LM Ericsson (publ)
- Terminal apparatus, base station apparatus, communication method, and integrated circuit8 Oct 2019US 10,436,842 B2Sharp Kabushiki Kaisha
- TDD time slot splitting4 Jul 2017US 9,699,322 B2Telefonaktiebolaget LM Ericsson (publ)
- Subframes in a cellular communications system11 Aug 2015US RE45,653 E1Telefonaktiebolaget'l M Ericsson (Publ)
- Tdd time slot splitting20 Oct 2022US 2022/0337705 A1Telefonaktiebolaget LM Ericsson (publ)
- Terminal apparatus, base station apparatus, communication method, and integrated circuit5 Oct 2017US 2017/0285105 A1Sharp Kabushiki Kaisha
- Tdd time slot splitting28 Sep 2017US 2017/0279969 A1Telefonaktiebolaget LM Ericsson (publ)
- Dynamic network routing decision processes and systems19 Mar 2015US 2015/0079999 A1Highbeam Inc.
- TDD Time Slot Splitting1 Jan 2015US 2015/0003303 A1Telefonaktiebolaget'l M Ericsson (Publ)
Most cited
By later US patents
- Communication network integrating voice data and video with distributed call processing360US 5,341,374 ATriLAN Systems Corporation · 1994
- Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith320US 6,275,990 B1ADC Telecommunications, Inc. · 2001
- Channel selection for a hybrid fiber coax network264US 6,334,219 B1ADC Telecommunications, Inc. · 2001
- Dynamic bandwidth allocation220US 7,069,577 B2SDC Telecommunications, Inc. · 2006
- Dynamic bandwidth allocation205US 6,279,158 B1ADC Telecommunications, Inc. · 2001