H04J 3/025
Filter arrangements
Official title: {Filter arrangements (H04J3/08 takes precedence; filters per se H03H7/00, H03H9/00)}
H04J3/025 (Filter arrangements) appears on 16 US grants and 12 published applications in this corpus.
Search patents in H04J- Granted patents
- 16
- Published applications
- 12
- Assignees
- 17
- Inventors
- 37
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 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 | 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 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 2 | 2 |
| 2018 | 0 | 2 |
| 2019 | 3 | 1 |
| 2020 | 3 | 0 |
| 2021 | 0 | 1 |
| 2022 | 2 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Estimating and compensating for hardware clock drift based on synchronization signals19 May 2026US 12,634,029 B1Amazon Technologies, Inc.
- Adaptive filtering for precision time protocol with physical layer support28 Nov 2023US 11,831,405 B2Renesas Electronics America Inc.
- Robust clock synchronization over computer network15 Nov 2022US 11,502,765 B2Zoox, Inc.
- Interference cancellation repeater and operating method thereof25 Oct 2022US 11,483,059 B2Foundation of Soongsil University-Industry Cooperation
- Embedded time of day receiver for clock transmission14 Jul 2020US 10,715,307 B1Microsemi Semiconductor ULC
- Adaptive filtering for precision time protocol with physical layer support14 Sep 2023US 2023/0291490 A1Renesas Electronics America Inc.
- Robust clock synchronization over computer network11 Aug 2022US 2022/0255653 A1Zoox, Inc.
- Interference cancellation repeater and operating method thereof18 Feb 2021US 2021/0050908 A1Foundation of Soongsil University-Industry Cooperation
- System, method and article for adaptive framing for tdma mac protocols29 Aug 2019US 2019/0268067 A1STMicroelectronics S,r.l.
- Radio reciever with smart listening mode15 Nov 2018US 2018/0331877 A1ALi Corporation
Most cited
By later US patents
- Embedded time of day receiver for clock transmission38US 10,715,307 B1Microsemi Semiconductor ULC · 2020
- Digital filter11US 3,959,637 AInternational Business Machines Corporation · 1976
- Tunable RF N-path filter10US 9,407,482 B2Nokia Technologies Oy · 2016
- Low pass active filter apparatus9US 3,999,137 AStromberg-Carlson Corporation · 1976
- Apparatus for transmitting and receiving pulses4US 4,127,750 AAssociation des Ouvriers en Instruments de Precision · 1978