H03H 9/44
Frequency dependent delay lines
Official title: Frequency dependent delay lines, e.g. dispersive delay lines
H03H9/44 (Frequency dependent delay lines) appears on 50 US grants and 2 published applications in this corpus.
Search patents in H03H- Granted patents
- 50
- Published applications
- 2
- Assignees
- 27
- Inventors
- 61
- Latest grant
- 17 Nov 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Multiplexer17 Nov 2020US 10,840,888 B2Murata Manufacturing Co., Ltd.
- Surface acoustic wave modulator7 Nov 2006US 7,132,778 B1X-Cyte, Inc.
- Surface-wave transducer device and identification system with such device7 Sep 2004US 6,788,204 B1Nanotron Gesellschaft fur Mikrotechnik mbH
- Backscatter transponder interrogation device26 Aug 2003US 6,611,224 B1X-Cyte, Inc.
- Wireless communication system using surface acoustic wave (SAW) single-phase unidirectional transducer (SPUDT) techniques8 Oct 2002US 6,462,698 B2Research In Motion Limited
Most cited
By later US patents
- Surface acoustic wave devices and method of manufacture thereof89US 4,672,254 AMassachusetts Institute of Technology · 1987
- Backscatter transponder interrogation device58US 6,611,224 B1X-Cyte, Inc. · 2003
- Temperature compensated surface acoustic wave devices46US 3,965,444 ARaytheon Company · 1976
- Inclined electrode surface acoustic wave substance sensor28US 5,012,668 AThe Boeing Company · 1991
- Surface-wave transducer device and identification system with such device28US 6,788,204 B1Nanotron Gesellschaft fur Mikrotechnik mbH · 2004