H01F 2021/125
Printed variable inductor with taps
Official title: {Printed variable inductor with taps, e.g. for VCO}
H01F2021/125 (Printed variable inductor with taps) appears on 191 US grants and 184 published applications in this corpus.
Search patents in H01F- Granted patents
- 191
- Published applications
- 184
- Assignees
- 87
- Inventors
- 360
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 6 |
| 2002 | 9 | 9 |
| 2003 | 10 | 12 |
| 2004 | 9 | 11 |
| 2005 | 8 | 14 |
| 2006 | 10 | 12 |
| 2007 | 11 | 15 |
| 2008 | 14 | 14 |
| 2009 | 8 | 9 |
| 2010 | 15 | 8 |
| 2011 | 12 | 4 |
| 2012 | 10 | 6 |
| 2013 | 4 | 4 |
| 2014 | 7 | 5 |
| 2015 | 2 | 5 |
| 2016 | 5 | 6 |
| 2017 | 2 | 3 |
| 2018 | 7 | 6 |
| 2019 | 9 | 10 |
| 2020 | 4 | 6 |
| 2021 | 6 | 4 |
| 2022 | 5 | 3 |
| 2023 | 4 | 6 |
| 2024 | 3 | 2 |
| 2025 | 4 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Inductor device28 Apr 2026US 12,614,656 B2Realtek Semiconductor Corp.
- System and method for computer-assisted design of inductor for voltaged-controlled oscillator14 Oct 2025US 12,443,778 B2Huawei Technologies Co., Ltd.
- Inductor device30 Sep 2025US 12,431,283 B2Realtek Semiconductor Corp.
- Integrated circuit (IC) package employing on-package tunable inductor formed in redistribution layer (RDL) for impedance tuner circuit, and related methods26 Aug 2025US 12,400,977 B2QUALCOMM Incorporated
- High-Q switch inductor18 Feb 2025US 12,232,264 B1Acacia Communications, Inc.
- Semiconductor structure and method for controlling the same22 Jan 2026US 2026/0026017 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Electronic device and fabrication method thereof5 Jun 2025US 2025/0182947 A1Indian Institute of Technology Ropar
- Inductor apparatus having dynamic inductance adjusting mechanism15 May 2025US 2025/0157713 A1Realtek Semiconductor Corp.
- Switchable coil and transmit circuit including the same27 Feb 2025US 2025/0069794 A1Samsung Electronics Co., Ltd.
- Multi-pole inductor structures with inherent high isolation12 Dec 2024US 2024/0412913 A1QUALCOMM Incorporated
Most cited
By later US patents
- Balanced planar transformers138US 4,816,784 ANorthern Telecom Limited · 1989
- Tunable embedded inductor devices133US 7,884,697 B2Industrial Technology Research Institute · 2011
- System and method for providing a low power receiver design114US 6,377,315 B1Broadcom Corporation · 2002
- Inductively tunable antenna for a radio frequency identification tag112US 6,480,110 B2Microchip Technology Incorporated · 2002
- System and method for narrow band PLL tuning91US 6,426,680 B1Broadcom Corporation · 2002