H01Q 21/18
H-type
H01Q21/18 (H-type) appears on 4 US grants and 3 published applications in this corpus.
Search patents in H01Q- Granted patents
- 4
- Published applications
- 3
- Assignees
- 4
- Inventors
- 13
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year.
Recent patents
- Phased circular array of planar omnidirectional radiating elements10 Jun 2025US 12,327,925 B2Rochester Institute of Technology
- Common antenna assembly and common antenna structure10 Aug 2021US 11,088,469 B1Auden Techno Corp.
- Dual-band dipole antenna30 Apr 2013US 8,432,327 B2Hon Hai Precision Industry Co., Ltd.
- H-type monopole isolation antenna11 Oct 2011US 8,035,572 B2Electronics and Telecommunications Research Institute
- Phased circular array of planar omnidirectional radiating elements11 May 2023US 2023/0142297 A1Rochester Institute of Technology
- Dual-band dipole antenna25 Nov 2010US 2010/0295746 A1Hon Hai Precision Industry Co., Ltd.
- H-type monopole isolation antenna7 Jan 2010US 2010/0001922 A1Electronics and Telecommunications Research Institute
Most cited
By later US patents
No patent in this class has been cited by a later US patent yet.