H04M 3/533
Voice mail systems
H04M3/533 (Voice mail systems) appears on 3,660 US grants and 2,872 published applications in this corpus.
Search patents in H04M- Granted patents
- 3,660
- Published applications
- 2,872
- Assignees
- 955
- Inventors
- 5,233
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 10 | 0 |
| 1987 | 3 | 0 |
| 1988 | 13 | 0 |
| 1989 | 23 | 0 |
| 1990 | 23 | 0 |
| 1991 | 21 | 0 |
| 1992 | 38 | 0 |
| 1993 | 36 | 0 |
| 1994 | 50 | 0 |
| 1995 | 73 | 0 |
| 1996 | 70 | 0 |
| 1997 | 70 | 0 |
| 1998 | 109 | 0 |
| 1999 | 119 | 0 |
| 2000 | 106 | 0 |
| 2001 | 120 | 56 |
| 2002 | 130 | 188 |
| 2003 | 129 | 161 |
| 2004 | 139 | 147 |
| 2005 | 90 | 161 |
| 2006 | 144 | 191 |
| 2007 | 118 | 203 |
| 2008 | 92 | 203 |
| 2009 | 88 | 156 |
| 2010 | 91 | 155 |
| 2011 | 171 | 111 |
| 2012 | 200 | 111 |
| 2013 | 229 | 158 |
| 2014 | 205 | 120 |
| 2015 | 172 | 127 |
| 2016 | 144 | 108 |
| 2017 | 121 | 103 |
| 2018 | 83 | 68 |
| 2019 | 91 | 60 |
| 2020 | 61 | 50 |
| 2021 | 58 | 54 |
| 2022 | 55 | 39 |
| 2023 | 42 | 56 |
| 2024 | 50 | 32 |
| 2025 | 37 | 33 |
| 2026 | 20 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- AI agent in visual voicemail daemon1 Sep 2026US 12,726,574 B2Apple Inc.
- System and method for motivation-based content optimization with dynamic interaction routing25 Aug 2026US 12,718,198 B2Taptext LLC
- Apparatus, system and method for emergency communications18 Aug 2026US 12,712,962 B2Essence Security International (E.S.I.) Ltd.
- Device independent text captioned telephone service18 Aug 2026US 12,712,968 B2Ultratec, Inc.
- System and method for provision of an advanced network function to a device11 Aug 2026US 12,707,003 B1Movius
- System and Methods for Using Enhanced QR Codes in a Call to Action1 Oct 2026US 2026/0300918 A1Taptext LLC
- System and method for handling unwanted calls and messages24 Sep 2026US 2026/0292056 A1AT&T Intellectual Property I, L. P.
- Compute systems and processes for video messages10 Sep 2026US 2026/0270347 A1Let's Roll Marketing LLC.
- System and method of connecting a caller to a recipient based on the recipients status and relationship to the caller6 Aug 2026US 2026/0230557 A1
- Adaptive voicemail and ivr detection for ai-driven call automation16 Jul 2026US 2026/0205546 A1Wishpond Technologies Ltd.
Most cited
By later US patents
- Personal communications internetworking1,899US 5,742,905 ABell Communications Research, Inc. · 1998
- Method and device for obtaining playlist content over a network1,821US 8,045,952 B2Horsham Enterprises, LLC · 2011
- Unified messaging system and method1,307US 5,608,786 AAlphanet Telecom Inc. · 1997
- System and method for instant VoIP messaging1,106US 7,535,890 B2Ayalogic, Inc. · 2009
- System and method for instant VoIP messaging1,083US 8,199,747 B2Ayalogic, Inc. · 2012