H04M 11/025
Door telephones
Official title: {Door telephones (adapted for television H04N7/186)}
H04M11/025 (Door telephones) appears on 349 US grants and 378 published applications in this corpus.
Search patents in H04M- Granted patents
- 349
- Published applications
- 378
- Assignees
- 158
- Inventors
- 595
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 0 | 1 |
| 2003 | 3 | 5 |
| 2004 | 2 | 2 |
| 2005 | 2 | 3 |
| 2006 | 4 | 10 |
| 2007 | 4 | 17 |
| 2008 | 4 | 10 |
| 2009 | 3 | 6 |
| 2010 | 5 | 5 |
| 2011 | 3 | 7 |
| 2012 | 13 | 6 |
| 2013 | 1 | 9 |
| 2014 | 11 | 11 |
| 2015 | 32 | 26 |
| 2016 | 16 | 30 |
| 2017 | 25 | 26 |
| 2018 | 17 | 31 |
| 2019 | 31 | 34 |
| 2020 | 28 | 31 |
| 2021 | 20 | 18 |
| 2022 | 19 | 30 |
| 2023 | 14 | 16 |
| 2024 | 15 | 20 |
| 2025 | 17 | 18 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Remote access control16 Dec 2025US 12,500,982 B2Amazon Technologies, Inc.
- Voice intercom system and method therefor18 Nov 2025US 12,477,086 B2Motorola Solutions, Inc.
- Doorbell communication systems and methods1 Oct 2026US 2026/0303402 A1SkyBell Technologies IP, LLC
- Automated Conversation Content Items From Natural Language16 Jul 2026US 2026/0204276 A1Meta Platforms Technologies, LLC
- Power outlet cameras9 Apr 2026US 2026/0100859 A1SkyBell Technologies IP, LLC
- Auto ring notification to nested smoke audio receiver12 Mar 2026US 2026/0073777 A1Resideo LLC
- Virtual intercom system15 Jan 2026US 2026/0017997 A1elngot LLC
Most cited
By later US patents
- Audio distribution system having programmable zoning features1,660US 5,761,320 AElan Home Systems, L.L.C. · 1998
- Audio distribution system having programmable zoning features1,643US 5,440,644 ASquare D Company · 1995
- Doorbell communication systems and methods529US 8,780,201 B1SkyBell Technologies, Inc. · 2014
- Method and system for interactive home monitoring478US 8,744,523 B2AT&T Intellectual Property I, L. P. · 2014
- Doorbell communication systems and methods421US 8,872,915 B1SkyBell Technologies, Inc. · 2014