H03C 1/56
Comprising variable two-pole elements only
Official title: comprising variable two-pole elements only
H03C1/56 (Comprising variable two-pole elements only) appears on 18 US grants and 1 published applications in this corpus.
Search patents in H03C- Granted patents
- 18
- Published applications
- 1
- Assignees
- 14
- Inventors
- 21
- Latest grant
- 13 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 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 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Passive wideband mixer13 Dec 2022US 11,527,995 B2
- I/Q-modulator and I/Q-demodulator21 Nov 1995US 5,469,126 ANokia Mobile Phones Ltd.
- Circuit for simultaneous amplitude modulation of a number of signals18 Jul 1995US 5,434,546 A
- Monolithic double balanced microstrip mixer with flat conversion loss27 Jun 1995US 5,428,840 AITT Corporation
- Modulator using low-pass filter as delay element25 May 1993US 5,214,397 AAlcatel
Most cited
By later US patents
- Circuit for simultaneous amplitude modulation of a number of signals104US 5,434,546 A1995
- Monolithic double balanced microstrip mixer with flat conversion loss24US 5,428,840 AITT Corporation · 1995
- I/Q-modulator and I/Q-demodulator13US 5,469,126 ANokia Mobile Phones Ltd. · 1995
- Double balanced mixer using single ferrite core9US 4,119,914 ADana Corporation · 1978
- Doubly balanced diode mixer comprising a ring modulator each leg of which comprises a high speed conventional diode in series with at least one diode of the "varactor" kind6US 4,637,069 AAdret Electronique · 1987