H04M 1/272
With provision for storing only one subscriber number at a time
Official title: with provision for storing only one subscriber number at a time, e.g. by keyboard or dial
H04M1/272 (With provision for storing only one subscriber number at a time) appears on 58 US grants and 26 published applications in this corpus.
Search patents in H04M- Granted patents
- 58
- Published applications
- 26
- Assignees
- 36
- Inventors
- 107
- Latest grant
- 11 Aug 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 2 | 1 |
| 2015 | 1 | 3 |
| 2016 | 2 | 3 |
| 2017 | 2 | 3 |
| 2018 | 3 | 2 |
| 2019 | 3 | 3 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Dialling phone numbers11 Aug 2020US 10,742,819 B2Skype
- Smart phone platform for kids21 Jul 2020US 10,721,349 B2
- Dialling phone numbers10 Sep 2019US 10,412,229 B2Skype
- Smart phone platform for kids21 May 2019US 10,298,747 B2
- Identifying the cellular number on a cellular device capable of supporting multiple cellular numbers2 Apr 2019US 10,250,745 B2T-Mobile USA, Inc.
- Dialer capture communicator9 Oct 2025US 2025/0317510 A1The ADT Security Corporation
- Dialling phone numbers21 Nov 2019US 2019/0356785 A1Skype
- Smart phone platform for kids1 Aug 2019US 2019/0238676 A1
- Identifying the cellular number on a cellular device capable of supporting multiple cellular numbers28 Feb 2019US 2019/0068778 A1T-Mobile USA, Inc.
- Dialling Phone Numbers22 Nov 2018US 2018/0338045 A1Skype
Most cited
By later US patents
- Microcomputer-controlled television/telephone system and method therefore315US 4,356,509 AZenith Radio Corporation · 1982
- Mobile unit supervisory control sequencer and method97US 4,028,500 AMartin Marietta Corporation · 1977
- Automatic call-back "camp-on" service for communication systems80US 5,268,957 ARolm Company · 1993
- Electronic business telephone67US 3,932,709 AGeneral Teletronics Incorporated · 1976
- One button cellular phone, system, and method for use46US 6,035,217 ASony Corporation of Japan · 2000