H04L 27/148
Using filters, including pll-type filters
Official title: using filters, including PLL-type filters
H04L27/148 (Using filters, including pll-type filters) appears on 207 US grants and 171 published applications in this corpus.
Search patents in H04L- Granted patents
- 207
- Published applications
- 171
- Assignees
- 122
- Inventors
- 374
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 8 |
| 2004 | 3 | 2 |
| 2005 | 0 | 6 |
| 2006 | 2 | 2 |
| 2007 | 3 | 5 |
| 2008 | 5 | 5 |
| 2009 | 2 | 3 |
| 2010 | 4 | 1 |
| 2011 | 3 | 4 |
| 2012 | 2 | 1 |
| 2013 | 4 | 4 |
| 2014 | 7 | 14 |
| 2015 | 14 | 20 |
| 2016 | 17 | 15 |
| 2017 | 14 | 13 |
| 2018 | 14 | 13 |
| 2019 | 15 | 9 |
| 2020 | 8 | 12 |
| 2021 | 13 | 5 |
| 2022 | 6 | 6 |
| 2023 | 7 | 7 |
| 2024 | 7 | 6 |
| 2025 | 6 | 5 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Method and system for down-converting electromagnetic signals185US 6,061,551 AParkerVision, Inc. · 2000
- Group-addressable transponder arrangement155US 5,410,315 ATexas Instruments Incorporated · 1995
- Digital communications equipment using differential quaternary frequency shift keying125US 5,412,687 AProxim, Inc. · 1995
- Cooperative beam-forming in wireless networks117US 8,670,390 B2Genghiscomm Holdings, LLC · 2014
- Signaling system113US 4,866,771 AThe Analytic Sciences Corporation · 1989