H01Q 17/004
Devices for absorbing waves radiated from an antenna: using non-directional dissipative particles
Official title: {using non-directional dissipative particles, e.g. ferrite powders (H01Q17/005 takes precedence; flake-like H01Q17/002)}
H01Q17/004 (Devices for absorbing waves radiated from an antenna: using non-directional dissipative particles) appears on 153 US grants and 138 published applications in this corpus.
Search patents in H01Q- Granted patents
- 153
- Published applications
- 138
- Assignees
- 126
- Inventors
- 414
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 0 |
| 2003 | 2 | 7 |
| 2004 | 5 | 2 |
| 2005 | 4 | 5 |
| 2006 | 1 | 3 |
| 2007 | 3 | 1 |
| 2008 | 1 | 3 |
| 2009 | 2 | 2 |
| 2010 | 3 | 4 |
| 2011 | 1 | 6 |
| 2012 | 0 | 1 |
| 2013 | 1 | 5 |
| 2014 | 4 | 3 |
| 2015 | 3 | 6 |
| 2016 | 6 | 6 |
| 2017 | 4 | 7 |
| 2018 | 5 | 8 |
| 2019 | 7 | 5 |
| 2020 | 10 | 5 |
| 2021 | 6 | 14 |
| 2022 | 8 | 14 |
| 2023 | 8 | 10 |
| 2024 | 7 | 6 |
| 2025 | 10 | 9 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radio wave absorber and radio wave absorbing composition15 Sep 2026US 12,738,665 B2FUJIFILM Corporation
- Techniques for pain relief2 Jun 2026US 12,646,830 B1nCap Medical, Inc.
- Radio frequency apparatus and method for assembling radio frequency apparatus3 Mar 2026US 12,566,242 B2Shenzhen Yinwang Intelligent Technologies Co., Ltd.
- Structure, method for manufacturing structure, and composition21 Oct 2025US 12,452,994 B2FUJIFILM Corporation
- Techniques for conductive particle based material used for at least one of propagation, emission and absorption of electromagnetic radiation16 Sep 2025US 12,418,105 B2nCap Licensing, LLC
- Article comprising radio wave absorber and radio wave absorber27 Aug 2026US 2026/0254127 A1FUJIFILM Corporation
- Electromagnetic Wave Shielding Material, Covering Material or Exterior Material, and Electric/Electronic Apparatus12 Mar 2026US 2026/0075786 A1JX Advanced Metals Corporation
- Pellet mixture, radio wave absorber, radio wave absorbing article, and method for producing radio wave absorber15 Jan 2026US 2026/0018323 A1FUJIFILM Corporation
- Techniques for conductive particle based material used for at least one of propagation, emission and absorption of electromagnetic radiation15 Jan 2026US 2026/0018785 A1nCap Licensing, LLC
- Multilayered Radar-Absorbing Elements Having Adaptable Properties For Microwave Absorption20 Nov 2025US 2025/0357677 A1Airbus Defence and Space GmbH
Most cited
By later US patents
- Electromagnetic wave absorption material and an associated device78US 6,818,821 B2Hitachi, Ltd. · 2004
- Combined layers in a microwave radiation absorber42US 4,012,738 AThe United States of America as represented by the Secretary of the Navy · 1977
- Metal-filled plastic material42US 4,024,318 AExxon Research & Engineering Co. · 1977
- Electromagnetically anechoic chamber and shield structures therefor41US 5,134,405 AMatsushita Electric Industrial Co., Ltd. · 1992
- Magnetic ceramic absorber38US 4,023,174 AThe United States of America as represented by the Secretary of the Navy · 1977