H03H 11/1286
Sallen-key biquad
Official title: {Sallen-Key biquad}
H03H11/1286 (Sallen-key biquad) appears on 49 US grants and 44 published applications in this corpus.
Search patents in H03H- Granted patents
- 49
- Published applications
- 44
- Assignees
- 29
- Inventors
- 98
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 2 | 2 |
| 2006 | 1 | 4 |
| 2007 | 2 | 4 |
| 2008 | 4 | 1 |
| 2009 | 1 | 0 |
| 2010 | 2 | 2 |
| 2011 | 2 | 1 |
| 2012 | 0 | 3 |
| 2013 | 5 | 3 |
| 2014 | 5 | 5 |
| 2015 | 3 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 2 |
| 2018 | 2 | 1 |
| 2019 | 1 | 4 |
| 2020 | 5 | 0 |
| 2021 | 2 | 2 |
| 2022 | 1 | 3 |
| 2023 | 0 | 2 |
| 2024 | 3 | 2 |
| 2025 | 3 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and device for determining current of electric motor or generator9 Dec 2025US 12,494,726 B2Korea Institute of Ocean Science & Technology
- Low-pass filter circuit14 Oct 2025US 12,445,115 B2NXP B. V.
- Detection device21 Jan 2025US 12,204,063 B2Japan Display Inc.
- Multiple feedback filter6 Aug 2024US 12,057,814 B2Texas Instruments Incorporated
- Active filter configured to suppress out-of-band peaking and an analog-to-digital converter using the same28 May 2024US 11,996,814 B2Intel Corporation
- Detection device3 Apr 2025US 2025/0110251 A1Japan Display Inc.
- Voltage-mode filters with output impedance neutralization12 Dec 2024US 2024/0413801 A1International Business Machines Corporation
- Low-pass filter circuit23 May 2024US 2024/0171154 A1NXP B. V.
- Method and device for determining current of electric motor or generator7 Dec 2023US 2023/0396196 A1Korea Institute of Ocean Science & Technology
- Detection device22 Jun 2023US 2023/0194744 A1Japan Display Inc.
Most cited
By later US patents
- Filter design tool75US 8,930,874 B2Analog Devices, Inc. · 2015
- Method and apparatus for signal filtering and for improving properties of electronic devices35US 8,489,666 B1Avatekh, Inc. · 2013
- Loop filter for a continuous time sigma delta analog to digital converter17US 6,967,606 B2Infineon Technologies AG · 2005
- Adaptive filtering system for patient signal monitoring12US 7,952,425 B2Siemens Medical Solutions USA, Inc. · 2011
- High frequency tunable filter10US 6,646,498 B2Texas Instruments Incorporated · 2003