H02J 50/70
Involving the reduction of electric, magnetic or electromagnetic leakage fields
Official title: involving the reduction of electric, magnetic or electromagnetic leakage fields
H02J50/70 (Involving the reduction of electric, magnetic or electromagnetic leakage fields) appears on 2,027 US grants and 2,608 published applications in this corpus.
Search patents in H02J- Granted patents
- 2,027
- Published applications
- 2,608
- Assignees
- 674
- Inventors
- 3,401
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 7 |
| 2003 | 2 | 3 |
| 2004 | 4 | 4 |
| 2005 | 5 | 10 |
| 2006 | 3 | 6 |
| 2007 | 8 | 12 |
| 2008 | 3 | 24 |
| 2009 | 11 | 31 |
| 2010 | 11 | 52 |
| 2011 | 23 | 83 |
| 2012 | 39 | 173 |
| 2013 | 50 | 163 |
| 2014 | 95 | 211 |
| 2015 | 115 | 269 |
| 2016 | 158 | 178 |
| 2017 | 203 | 184 |
| 2018 | 221 | 198 |
| 2019 | 203 | 168 |
| 2020 | 159 | 122 |
| 2021 | 141 | 142 |
| 2022 | 144 | 148 |
| 2023 | 116 | 131 |
| 2024 | 113 | 136 |
| 2025 | 92 | 92 |
| 2026 | 73 | 60 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Line sensor comprising a capacitive divider with integrated slot antenna6 Oct 2026US 12,754,212 B2Comrod AS
- Wireless charging device6 Oct 2026US 12,756,214 B2Inventec Corporation
- Wearable speaker6 Oct 2026US 12,756,962 B2LG Electronics Inc.
- Wireless power transmission apparatus with multiple controllers and adjacent coil muting29 Sep 2026US 12,749,926 B2GE Hybrid Technologies, LLC
- Contactless power feeder15 Sep 2026US 12,738,769 B2Daifuku Co., Ltd.
- Ground power supply device and wiring8 Oct 2026US 2026/0307513 A1Denso Corporation
- Radiated emission reduction for wireless charging8 Oct 2026US 2026/0312435 A1Tesla, Inc.
- Layered double-d coil for wireless power transfer systems1 Oct 2026US 2026/0302836 A1Tennessee Technological University
- Power transfer disablement switch in a wireless power reception apparatus1 Oct 2026US 2026/0302840 A1Dolby Intellectual Property Licensing, LLC
- System and method for inductive charging of portable devices24 Sep 2026US 2026/0291287 A1Mojo Mobility, Inc.
Most cited
By later US patents
- Surgical sterilizer with integrated battery charging device1,015US 8,258,745 B2Syntheon, LLC · 2012
- Recharge of an implantable device in the presence of other conductive objects880US 8,818,523 B2Medtronic, Inc. · 2014
- Charging of devices by microwave power beaming715US 6,967,462 B1NASA Glenn Research Center · 2005
- Method and apparatus for wireless powering and recharging696US 6,127,799 AGTE Internetworking Incorporated · 2000
- Implantable device with improved battery recharging and powering configuration693US 6,067,474 AAdvanced Bionics AG · 2000