H04B 5/00
Near-field transmission systems
Official title: Near-field transmission systems, e.g. inductive or capacitive transmission systems
H04B5/00 (Near-field transmission systems) appears on 10,393 US grants and 12,597 published applications in this corpus.
Search patents in H04B- Granted patents
- 10,393
- Published applications
- 12,597
- Assignees
- 2,862
- Inventors
- 15,839
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 12 | 0 |
| 1989 | 4 | 0 |
| 1990 | 10 | 0 |
| 1991 | 12 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 10 | 0 |
| 1996 | 8 | 0 |
| 1997 | 12 | 0 |
| 1998 | 16 | 0 |
| 1999 | 18 | 0 |
| 2000 | 18 | 0 |
| 2001 | 21 | 2 |
| 2002 | 12 | 25 |
| 2003 | 25 | 21 |
| 2004 | 12 | 50 |
| 2005 | 22 | 60 |
| 2006 | 34 | 75 |
| 2007 | 37 | 118 |
| 2008 | 31 | 177 |
| 2009 | 46 | 200 |
| 2010 | 92 | 300 |
| 2011 | 126 | 324 |
| 2012 | 206 | 429 |
| 2013 | 302 | 727 |
| 2014 | 418 | 916 |
| 2015 | 610 | 1014 |
| 2016 | 840 | 1016 |
| 2017 | 1039 | 1107 |
| 2018 | 1021 | 1078 |
| 2019 | 1144 | 957 |
| 2020 | 899 | 845 |
| 2021 | 778 | 744 |
| 2022 | 640 | 645 |
| 2023 | 573 | 580 |
| 2024 | 513 | 491 |
| 2025 | 468 | 426 |
| 2026 | 275 | 270 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Non-invasive method and system for detecting quality of packaged milk6 Oct 2026US 12,754,178 B2Tata Consultancy Services Limited
- Wireless power transmitters for transmitting power at extended separation distances with magnetic connectors6 Oct 2026US 12,756,229 B2NuCurrent, Inc.
- Digital key pairing device and method6 Oct 2026US 12,757,026 B2Hyundai Motor Company
- Chassis with a handle having an antenna for wireless communication29 Sep 2026US 12,749,796 B2AES Global Holdings PTE Ltd.
- Wireless power receiver, wireless power transmitter, and wireless power transfer method using same29 Sep 2026US 12,749,922 B2LG Electronics Inc.
- Method, terminal, and smart card for registering and recognizing fingerprint8 Oct 2026US 2026/0310925 A1Samsung Electronics Co., Ltd.
- A system for enhancing nfc communication with a programmable driver inside a metal housing8 Oct 2026US 2026/0312622 A1Signify Holding B. V.
- Method for providing nfc data exchange format messages8 Oct 2026US 2026/0312623 A1Silicon Craft Technology Co., Ltd.
- Communication device8 Oct 2026US 2026/0312624 A1
- Communication device8 Oct 2026US 2026/0312625 A1
Most cited
By later US patents
- Wireless non-radiative energy transfer952US 7,741,734 B2Massachusetts Institute of Technology · 2010
- Non-contact surgical adapter electrical interface823US 10,164,466 B2Covidien LP · 2018
- Device for quantitatively measuring the relative position and orientation of two bodies in the presence of metals utilizing direct current magnetic fields735US 4,945,305 AAscension Technology Corporation · 1990
- Surgical shaft assemblies with slip ring assemblies forming capacitive channels675US 10,903,685 B2Ethicon, Inc. · 2021
- Systems and methods for wireless power640US 8,115,448 B22012