G10H 2250/085
Butterworth filters
G10H2250/085 (Butterworth filters) appears on 5 US grants and 6 published applications in this corpus.
Search patents in G10H- Granted patents
- 5
- Published applications
- 6
- Assignees
- 5
- Inventors
- 12
- Latest grant
- 13 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 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 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for detecting audio signal beat points of bass drum, and terminal13 Dec 2022US 11,527,257 B2Bigo Technology Pte. Ltd.
- Periodicity analysis system27 Mar 2018US 9,928,419 B2
- Periodicity analysis system1 Aug 2017US 9,721,159 B2
- Emulated guitar loudspeaker26 Jun 1990US 4,937,874 A
- Tone generator11 Jun 1985US 4,522,099 AAdolph Coors Company
- Filterbank Pitchshifter12 Jun 2025US 2025/0193632 A1Eventide Inc.
- Negative Group Delay Filters based on Reciprocal-capped Butterworth, and Reciprocal-capped Chebyshev low-pass filter transfer functions24 Apr 2025US 2025/0131172 A1
- Method for detecting audio signal beat points of bass drum, and terminal15 Oct 2020US 2020/0327898 A1Guangzhou Baiguoyuan Information Technology Co., Ltd.
- Periodicity analysis system24 Aug 2017US 2017/0243050 A1
- Periodicity analysis system6 Apr 2017US 2017/0098112 A1
Most cited
By later US patents