H04M 5/04
Arrangements for indicating calls or supervising connections for calling or clearing
H04M5/04 (Arrangements for indicating calls or supervising connections for calling or clearing) appears on 4 US grants and 2 published applications in this corpus.
Search patents in H04M- Granted patents
- 4
- Published applications
- 2
- Assignees
- 4
- Inventors
- 7
- Latest grant
- 14 Apr 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 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 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Wearable terminal for displaying screen optimized for various situations14 Apr 2020US 10,621,955 B2LG Electronics Inc.
- Interconnection evaluation system and method for switchboard9 Jan 2018US 9,864,010 B2Lsis Co., Ltd.
- High efficiency split flow turbine for compressible fluids28 Aug 1979US 4,165,949 AGroupe Europeen pour la Technique des Turbines a Vapeur G.E.T.T.
- Process for the nitration of haloaromatics18 May 1976US 3,957,890 AMonsanto Company
Most cited
By later US patents
- Wearable terminal for displaying screen optimized for various situations9US 10,621,955 B2LG Electronics Inc. · 2020
- High efficiency split flow turbine for compressible fluids7US 4,165,949 AGroupe Europeen pour la Technique des Turbines a Vapeur G.E.T.T. · 1979
- Process for the nitration of haloaromatics3US 3,957,890 AMonsanto Company · 1976