H04B 13/00
Transmission systems characterised by the medium used for transmission, not provided for
Official title: Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
H04B13/00 (Transmission systems characterised by the medium used for transmission, not provided for) appears on 1,270 US grants and 1,492 published applications in this corpus.
Search patents in H04B- Granted patents
- 1,270
- Published applications
- 1,492
- Assignees
- 575
- Inventors
- 2,600
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 2 |
| 2002 | 10 | 17 |
| 2003 | 7 | 8 |
| 2004 | 12 | 22 |
| 2005 | 11 | 12 |
| 2006 | 18 | 27 |
| 2007 | 10 | 30 |
| 2008 | 8 | 37 |
| 2009 | 19 | 48 |
| 2010 | 19 | 79 |
| 2011 | 24 | 71 |
| 2012 | 64 | 61 |
| 2013 | 66 | 61 |
| 2014 | 54 | 65 |
| 2015 | 53 | 87 |
| 2016 | 84 | 105 |
| 2017 | 82 | 94 |
| 2018 | 94 | 96 |
| 2019 | 77 | 93 |
| 2020 | 105 | 97 |
| 2021 | 79 | 76 |
| 2022 | 52 | 76 |
| 2023 | 68 | 70 |
| 2024 | 74 | 66 |
| 2025 | 47 | 49 |
| 2026 | 24 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Communication device and communication system6 Oct 2026US 12,756,483 B2Sony Group Corporation
- Device for enabling mobile communication terminal to exchange information underwater through electromagnetic waves29 Sep 2026US 12,749,805 B2Divevolk Pte. Ltd.
- Wireless communication1 Sep 2026US 12,726,279 B2Tendeka B.V.
- Techniques for adaptive video multicasts through acoustic channels in underwater environments1 Sep 2026US 12,726,280 B2Rutgers, The State University of New Jersey
- Communication device and communication method28 Jul 2026US 12,695,519 B2HTC Corporation
- Downrigger Probe1 Oct 2026US 2026/0298720 A1Airmar Technology Corporation
- Communication management in wearable devices1 Oct 2026US 2026/0304283 A1Samsung Electronics Co., Ltd.
- Subterranean communications system and method17 Sep 2026US 2026/0280726 A1CMTE Development Limited
- Systems and methods for transmitting communications and power over long distances through terrestrial sub-surfaces17 Sep 2026US 2026/0280727 A1Tennessee Technological University
- System for visual light communication and related methods27 Aug 2026US 2026/0250975 A1Elliptic Works LLC
Most cited
By later US patents
- System and method for near-field human-body coupling for encrypted communication with identification cards553US 5,796,827 AInternational Business Machines Corporation · 1998
- Method and apparatus for transbody transmission of power and information309US 6,211,799 B1Massachusetts Institute of Technology · 2001
- Authentication information communication system and method, portable information processing device and program furnishing medium304US 7,202,773 B1Sony Corporation · 2007
- Wireless network having body coupled communication for mobile patient monitoring295US 7,978,063 B2Koninklijke Philips Electronics N. V. · 2011
- Rate responsive leadless cardiac pacemaker283US 7,937,148 B2Nanostim, Inc. · 2011