H03H 11/481
Simulating capacitances
Official title: {Simulating capacitances}
H03H11/481 (Simulating capacitances) appears on 62 US grants and 51 published applications in this corpus.
Search patents in H03H- Granted patents
- 62
- Published applications
- 51
- Assignees
- 46
- Inventors
- 88
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 4 |
| 2008 | 1 | 3 |
| 2009 | 2 | 2 |
| 2010 | 2 | 1 |
| 2011 | 2 | 0 |
| 2012 | 2 | 3 |
| 2013 | 1 | 1 |
| 2014 | 2 | 5 |
| 2015 | 2 | 2 |
| 2016 | 3 | 2 |
| 2017 | 8 | 6 |
| 2018 | 1 | 3 |
| 2019 | 3 | 4 |
| 2020 | 6 | 3 |
| 2021 | 2 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 3 |
| 2024 | 3 | 1 |
| 2025 | 1 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compact multifunctional filter20 Jan 2026US 12,531,473 B2
- Reactance cancelling radio frequency circuit array18 Feb 2025US 12,230,895 B2Qorvo US, Inc.
- VCII based tunable positive and negative impedance simulator and impedance multiplier26 Nov 2024US 12,155,361 B2King Fahd University of Petroleum and Minerals
- Continuously variable active reactance systems and methods12 Nov 2024US 12,143,083 B2Etherdyne Technologies, Inc.
- Matching circuit, semiconductor device, and electronic device10 Sep 2024US 12,087,863 B2Semiconductor Energy Laboratory Co.Ltd.
- Apparatuses and methods involving transducers and their tuning13 Mar 2025US 2025/0088798 A1The Board of Trustees of the Leland Stanford Junior University
- Compact Multifunctional Filter6 Mar 2025US 2025/0079972 A1
- Continuously variable active reactance systems and methods27 Feb 2025US 2025/0070756 A1Etherdyne Technologies, Inc.
- Vcii based tunable positive and negative impedance simulator and impedance multiplier9 May 2024US 2024/0154606 A1King Fahd University of Petroleum and Minerals
- Continuously variable active reactance systems and methods12 Oct 2023US 2023/0327650 A1Etherdyne Technologies, Inc.
Most cited
By later US patents
- Apparatus and method for broadband matching of electrically small antennas36US 6,121,940 AAIL Systems, Inc. · 2000
- Electromechanical transducer-coupled mechanical structure with negative capacitance compensation circuit33US 4,158,787 AHughes Aircraft Company · 1979
- d.c. Block capacitor circuit for rejection of d.c. offset26US 4,713,563 AU. S. Philips Corporation · 1987
- Filter having a variable response time for filtering an input signal20US 5,499,392 AMatsushita Communication Industrial Corporation of America · 1996
- Voltage tuned active filter and circuitry simulating a capacitance and an inductance18US 4,383,230 A1983