H01P 1/181
Using ferroelectric devices
Official title: {using ferroelectric devices}
H01P1/181 (Using ferroelectric devices) appears on 156 US grants and 129 published applications in this corpus.
Search patents in H01P- Granted patents
- 156
- Published applications
- 129
- Assignees
- 79
- Inventors
- 338
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 1 |
| 2002 | 7 | 12 |
| 2003 | 12 | 6 |
| 2004 | 8 | 6 |
| 2005 | 7 | 15 |
| 2006 | 12 | 7 |
| 2007 | 5 | 3 |
| 2008 | 3 | 4 |
| 2009 | 6 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 3 | 2 |
| 2017 | 3 | 1 |
| 2018 | 3 | 5 |
| 2019 | 2 | 5 |
| 2020 | 4 | 8 |
| 2021 | 6 | 6 |
| 2022 | 5 | 12 |
| 2023 | 13 | 9 |
| 2024 | 11 | 10 |
| 2025 | 7 | 8 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Phase shifter including an adjustable dielectric between first and second dielectric substrates with conductive patterns and also including split ring resonators22 Sep 2026US 12,744,293 B2Beijing BOE Technology Development Co., Ltd.
- Phase shifter comprising first and second base plates with electrode layers and an adjustable dielectric layer disposed therebetween8 Sep 2026US 12,731,877 B2Beijing BOE Sensor Technology Co., Ltd.
- Radio frequency apparatus, antenna and electronic device12 May 2026US 12,627,046 B2Beijing BOE Sensor Technology Co., Ltd.
- Tunable phase shifter comprising a tunable dielectric layer between first and second electrodes of specified sheet resistance and method for manufacturing10 Feb 2026US 12,548,870 B2Boe Technology Group Co., Ltd.
- Phase shifter for a wireless communication device comprising a substrate having a transmission line and a two wire bias line, where one wire has greater sheet resistance than the other wire10 Feb 2026US 12,548,871 B2Chengdu Tianma Microelectronics Co., Ltd.
- Radio frequency apparatus, antenna and electronic device13 Aug 2026US 2026/0237897 A1Beijing BOE Sensor Technology Co., Ltd.
- Phase converting apparatus26 Feb 2026US 2026/0058364 A1Kmw Inc.
- Phase shifter and electronic device29 Jan 2026US 2026/0031517 A1Boe Technology Group Co., Ltd.
- Phase shifter and electronic device22 Jan 2026US 2026/0024903 A1Boe Technology Group Co., Ltd.
- Variable dielectric based antenna with improved response time18 Dec 2025US 2025/0385433 A1
Most cited
By later US patents
- Serially-fed phased array antennas with dielectric phase shifters294US 6,377,217 B1Paratek Microwave, Inc. · 2002
- Phased array antenna system including a coplanar waveguide feed arrangement262US 5,694,134 ASuperconducting Core Technologies, Inc. · 1997
- Tuneable microwave devices incorporating high temperature superconducting and ferroelectric films225US 5,472,935 A1995
- Multilayered ferroelectric composite waveguides216US 5,830,591 A1998
- Phased array antennas incorporating voltage-tunable phase shifters189US 6,538,603 B1Paratek Microwave, Inc. · 2003