H04J 11/00
Orthogonal multiplex systems
Official title: Orthogonal multiplex systems, {e.g. using WALSH codes}(H04J13/00 takes precedence)
H04J11/00 (Orthogonal multiplex systems) appears on 6,786 US grants and 7,726 published applications in this corpus.
Search patents in H04J- Granted patents
- 6,786
- Published applications
- 7,726
- Assignees
- 793
- Inventors
- 6,389
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 14 |
| 2003 | 6 | 6 |
| 2004 | 5 | 19 |
| 2005 | 8 | 22 |
| 2006 | 9 | 18 |
| 2007 | 13 | 56 |
| 2008 | 14 | 97 |
| 2009 | 18 | 175 |
| 2010 | 41 | 274 |
| 2011 | 98 | 283 |
| 2012 | 184 | 283 |
| 2013 | 276 | 420 |
| 2014 | 356 | 517 |
| 2015 | 522 | 694 |
| 2016 | 623 | 707 |
| 2017 | 657 | 632 |
| 2018 | 586 | 671 |
| 2019 | 666 | 591 |
| 2020 | 660 | 579 |
| 2021 | 506 | 433 |
| 2022 | 435 | 357 |
| 2023 | 373 | 343 |
| 2024 | 356 | 263 |
| 2025 | 238 | 183 |
| 2026 | 118 | 89 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods and systems for decentralized rail signaling and positive train control6 Oct 2026US 12,752,823 B2Metrom Rail, LLC
- Synchronization signal block pattern enhancement6 Oct 2026US 12,757,112 B2Apple Inc.
- Radio communication system, base station and communication terminal for radio communication between communication terminal and base station using subcarriers29 Sep 2026US 12,750,874 B2Mitsubishi Electric Corporation
- Wireless communication method, network device and terminal device22 Sep 2026US RE51,042 E1Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- Broadcast signal transmission method, broadcast signal transmission apparatus, broadcast signal reception method, and broadcast signal reception apparatus15 Sep 2026US 12,738,992 B2Sun Patent Trust
- Method and apparatus for signal interference processing24 Sep 2026US 2026/0292861 A1ISCO International, LLC
- Processing device, network node, client device, and methods thereof17 Sep 2026US 2026/0280601 A1Huawei Technologies Co., Ltd.
- Reciprocity-aided interference suppression via eigen beamforming17 Sep 2026US 2026/0280630 A1Telefonaktiebolaget LM Ericsson (publ)
- Method and apparatus for service processing in dual card terminal device17 Sep 2026US 2026/0280742 A1Honor Device Co., Ltd.
- Method and apparatus for cross-link-interference mitigation in mobile communications10 Sep 2026US 2026/0269969 A1MediaTek Singapore Pte. Ltd.
Most cited
By later US patents
- Cooperative interference subtraction scheme418US 9,439,078 B2Spectrum Effect Inc. · 2016
- Interference detection with UE signal subtraction408US 9,769,834 B2Spectrum Effect Inc. · 2017
- Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel372US 10,136,434 B2AT&T Intellectual Property I, L. P. · 2018
- Interference suppressing method and device in dynamic frequency spectrum access system349US 10,536,210 B2Sony Corporation · 2020
- Detecting tropospheric ducting interference in cellular networks308US 11,018,784 B2Spectrum Effect Inc. · 2021