H04J 99/00
Subject matter not provided for in other groups of this subclass
H04J99/00 (Subject matter not provided for in other groups of this subclass) appears on 154 US grants and 156 published applications in this corpus.
Search patents in H04J- Granted patents
- 154
- Published applications
- 156
- Assignees
- 87
- Inventors
- 349
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 8 |
| 2010 | 2 | 5 |
| 2011 | 4 | 0 |
| 2012 | 3 | 4 |
| 2013 | 4 | 3 |
| 2014 | 4 | 3 |
| 2015 | 4 | 1 |
| 2016 | 1 | 5 |
| 2017 | 2 | 7 |
| 2018 | 4 | 23 |
| 2019 | 24 | 20 |
| 2020 | 20 | 30 |
| 2021 | 21 | 12 |
| 2022 | 14 | 5 |
| 2023 | 11 | 9 |
| 2024 | 5 | 6 |
| 2025 | 4 | 6 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radio-controlled two way acoustic modem24 Feb 2026US 12,562,944 B2NEC Corporation
- Spatially multiplexed acoustic modem2 Dec 2025US 12,489,661 B2NEC Corporation
- Method and device for transmitting and receiving signal by using time offset in time-asynchronous non-orthogonal multiple access system14 Oct 2025US 12,445,329 B2Samsung Electronics Co., Ltd.
- Control apparatus, OAM mode-multiplexing transmitting apparatus, OAM mode-multiplexing receiving apparatus, control method, and non-transitory computer readable medium25 Mar 2025US 12,261,686 B2NEC Corporation
- Frequency division multiple access optical subcarriers18 Mar 2025US 12,255,731 B2Infinera Corporation
- Terminal, radio communication method, and base station18 Jun 2026US 2026/0172163 A1Ntt Docomo, Inc.
- Transmission station and receiving station that switch between otfs modulation and ofdm modulation19 Feb 2026US 2026/0051968 A1Kddi Corporation
- Method and device for constant envelope multiplexing in wireless communication system4 Dec 2025US 2025/0374202 A1Electronics and Telecommunications Research Institute
- Frequency division multiple access optical subcarriers11 Sep 2025US 2025/0286619 A1
- Frequency division multiple access optical subcarriers12 Jun 2025US 2025/0192881 A1
Most cited
By later US patents
- Method and apparatus for transporting auxiliary data in audio signals346US 5,822,360 ASolana Technology Development Corporation · 1998
- Method and apparatus for embedding auxiliary data in a primary data signal165US 5,937,000 ASolana Technology Development Corporation · 1999
- Communications method and apparatus for digital information87US 5,689,529 AInternational Automated Systems, Inc. · 1997
- Supplementary information transmitting arrangement for a digital data transmission system39US 4,387,460 ASociete Anonyme de Tele-Communication · 1983
- Communication method and apparatus37US 4,719,616 AYamatake-Honeywell Co., Ltd. · 1988