H04B 3/542
The information being in digital form
Official title: {the information being in digital form}
H04B3/542 (The information being in digital form) appears on 1,252 US grants and 1,247 published applications in this corpus.
Search patents in H04B- Granted patents
- 1,252
- Published applications
- 1,247
- Assignees
- 569
- Inventors
- 1,928
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 11 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 13 | 0 |
| 1988 | 5 | 0 |
| 1989 | 13 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 10 | 0 |
| 1994 | 9 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 4 |
| 2002 | 9 | 27 |
| 2003 | 5 | 29 |
| 2004 | 11 | 59 |
| 2005 | 23 | 50 |
| 2006 | 37 | 43 |
| 2007 | 33 | 73 |
| 2008 | 36 | 57 |
| 2009 | 25 | 29 |
| 2010 | 42 | 47 |
| 2011 | 47 | 50 |
| 2012 | 48 | 56 |
| 2013 | 52 | 98 |
| 2014 | 87 | 96 |
| 2015 | 85 | 102 |
| 2016 | 90 | 64 |
| 2017 | 96 | 66 |
| 2018 | 56 | 55 |
| 2019 | 74 | 56 |
| 2020 | 71 | 53 |
| 2021 | 37 | 35 |
| 2022 | 34 | 33 |
| 2023 | 25 | 20 |
| 2024 | 25 | 25 |
| 2025 | 19 | 14 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Communication device and communication signal generation method29 Sep 2026US 12,750,089 B2Panasonic Intellectual Property Management Co., Ltd.
- Communication method and communication apparatus25 Aug 2026US 12,719,526 B2Huawei Technologies Co., Ltd.
- Data transmission method, and power line communication apparatus and system21 Jul 2026US 12,689,408 B2Huawei Technologies Co., Ltd.
- Discrete multitone based wireline telemetry system for single-mode telemetry applications14 Jul 2026US 12,683,649 B2Schlumberger Technology Corporation
- Power control system, device, and information processing system19 May 2026US 12,633,965 B2Daikin Industries, Ltd.
- Solar panel transmitter and signal synchronization9 Jul 2026US 2026/0197152 A1Tigo Energy, Inc.
- Delay-tunable data transmission in a multiphase power converter25 Jun 2026US 2026/0180621 A1
- Smart cable system for a truck trailer18 Jun 2026US 2026/0166935 A1Grote Industries, Inc.
- Power converter, data collector, and plc system21 May 2026US 2026/0142497 A1Huawei Digital Power Technologies Co., Ltd.
- Discrete multitone based wireline telemetry system for single-mode telemetry applications30 Apr 2026US 2026/0121687 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Patient care system886US 4,835,372 AClinCom Incorporated · 1989
- Patient identification and verification system and method636US 4,857,716 ACliniCom Incorporated · 1989
- Backhaul link for distributed antenna system604US 9,113,347 B2AT&T Intellectual Property I, L. P. · 2015
- Surface wave power line communications system and method602US 7,280,033 B2Current Technologies, LLC · 2007
- Power transfer apparatus for concurrently transmitting data and power over data wires575US 5,994,998 A3Com Corporation · 1999