H04M 1/27
Devices whereby a plurality of signals may be stored simultaneously
H04M1/27 (Devices whereby a plurality of signals may be stored simultaneously) appears on 4,932 US grants and 4,712 published applications in this corpus.
Search patents in H04M- Granted patents
- 4,932
- Published applications
- 4,712
- Assignees
- 1,313
- Inventors
- 8,427
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 14 | 0 |
| 1978 | 14 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 15 | 0 |
| 1985 | 8 | 0 |
| 1986 | 12 | 0 |
| 1987 | 17 | 0 |
| 1988 | 22 | 0 |
| 1989 | 53 | 0 |
| 1990 | 35 | 0 |
| 1991 | 30 | 0 |
| 1992 | 32 | 0 |
| 1993 | 39 | 0 |
| 1994 | 53 | 0 |
| 1995 | 57 | 0 |
| 1996 | 67 | 0 |
| 1997 | 76 | 0 |
| 1998 | 117 | 0 |
| 1999 | 146 | 0 |
| 2000 | 127 | 0 |
| 2001 | 150 | 63 |
| 2002 | 122 | 196 |
| 2003 | 111 | 195 |
| 2004 | 125 | 229 |
| 2005 | 124 | 259 |
| 2006 | 175 | 295 |
| 2007 | 137 | 330 |
| 2008 | 115 | 327 |
| 2009 | 130 | 326 |
| 2010 | 181 | 326 |
| 2011 | 221 | 228 |
| 2012 | 276 | 208 |
| 2013 | 300 | 220 |
| 2014 | 280 | 239 |
| 2015 | 217 | 215 |
| 2016 | 236 | 199 |
| 2017 | 216 | 165 |
| 2018 | 154 | 135 |
| 2019 | 164 | 113 |
| 2020 | 146 | 122 |
| 2021 | 105 | 89 |
| 2022 | 97 | 76 |
| 2023 | 62 | 56 |
| 2024 | 58 | 59 |
| 2025 | 44 | 31 |
| 2026 | 17 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for automated updating of contact information22 Sep 2026US 12,744,841 B2Adeia Guides Inc.
- Routing queries based on carrier phrase registration25 Aug 2026US 12,720,287 B2Google Inc.
- Automatic after call application download platform18 Aug 2026US 12,711,522 B2OnePIN, Inc.
- Speaker recognition in the call center18 Aug 2026US 12,711,960 B2Pindrop Security, Inc.
- Phone user interface7 Jul 2026US 12,676,927 B2Apple Inc.
- Method and device for producing a communication channel30 Jul 2026US 2026/0223211 A1
- Notification system, notification device, notification method, and recording medium25 Jun 2026US 2026/0179049 A1Panasonic Intellectual Property Management Co., Ltd.
- Two-way communication system initiated by machine readable code18 Jun 2026US 2026/0172501 A1Bearcom Group, Inc.
- Systems and methods for providing real-time telecom identification and analytics with the establishment of a unified common data model21 May 2026US 2026/0143057 A1MT International LLC
- Automatic after call survey and campaign-based customer feedback collection platform30 Apr 2026US 2026/0120143 A1OnePIN, Inc.
Most cited
By later US patents
- Programmable remote control device for interacting with a plurality of remotely controlled devices1,549US 5,410,326 A1995
- Communication system and methods for enhanced information transfer935US 5,335,276 ATexas Instruments Incorporated · 1994
- Mobile station with touch input having automatic symbol magnification function702US 6,073,036 ANokia Mobile Phones Ltd. · 2000
- Method and apparatus for accessing a contacts database and telephone services702US 7,007,239 B1Palm, Inc. · 2006
- Communication system and methods for enhanced information transfer699US 5,465,401 ATexas Instruments Incorporated · 1995