H04M 1/677
Preventing the dialling or sending of predetermined telephone numbers or selected types
Official title: Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers
H04M1/677 (Preventing the dialling or sending of predetermined telephone numbers or selected types) appears on 269 US grants and 213 published applications in this corpus.
Search patents in H04M- Granted patents
- 269
- Published applications
- 213
- Assignees
- 147
- Inventors
- 465
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 12 | 0 |
| 2002 | 6 | 5 |
| 2003 | 5 | 10 |
| 2004 | 6 | 16 |
| 2005 | 3 | 18 |
| 2006 | 10 | 21 |
| 2007 | 9 | 12 |
| 2008 | 11 | 14 |
| 2009 | 14 | 16 |
| 2010 | 7 | 8 |
| 2011 | 8 | 13 |
| 2012 | 7 | 6 |
| 2013 | 15 | 17 |
| 2014 | 15 | 18 |
| 2015 | 13 | 12 |
| 2016 | 11 | 13 |
| 2017 | 11 | 2 |
| 2018 | 5 | 5 |
| 2019 | 6 | 3 |
| 2020 | 2 | 0 |
| 2021 | 0 | 3 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Emergency information access on portable electronic devices29 Jul 2025US 12,373,522 B2Apple Inc.
- Emergency information access on portable electronic devices29 Aug 2023US 11,741,199 B2Apple Inc.
- Medical alert device6 Dec 2022US 11,522,991 B2
- Systems and methods for protecting against outgoing calls to malicious phone numbers27 Oct 2020US 10,819,847 B1NortonLifeLock Inc.
- Emergency information access on portable electronic devices13 Oct 2020US 10,802,669 B2Apple Inc.
- Emergency information access on portable electronic devices14 Dec 2023US 2023/0401298 A1Apple Inc.
- Medical alert device29 Jul 2021US 2021/0228162 A1Futurama Marketing, LLC
- Transmitting a medical alert directly to an emergency dispatch office29 Jul 2021US 2021/0234954 A1Futurama Marketing, LLC
- Emergency information access on portable electronic devices29 Apr 2021US 2021/0124813 A1Apple Inc.
- System and method for mobile number verification27 Jun 2019US 2019/0200227 A1Early Warning Services, LLC
Most cited
By later US patents
- Emergency mobile telephone366US 5,742,666 ATele Digital Development, Inc. · 1998
- Method for emergency service access using a mobile phone240US 6,574,484 B1WorldCom, Inc. · 2003
- Automatic incoming telephone call identification and disposition system224US 5,388,150 A1995
- Emergency phone for automatically summoning multiple emergency response services193US 6,226,510 B1American Secure Care, LLC · 2001
- Panic button phone184US 6,044,257 AAmerican Secure Care, LLC · 2000