H04M 19/042
With variable loudness of the ringing tone
Official title: {with variable loudness of the ringing tone, e.g. variable envelope or amplitude of ring signal}
H04M19/042 (With variable loudness of the ringing tone) appears on 166 US grants and 172 published applications in this corpus.
Search patents in H04M- Granted patents
- 166
- Published applications
- 172
- Assignees
- 95
- Inventors
- 337
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 8 |
| 2004 | 2 | 5 |
| 2005 | 1 | 6 |
| 2006 | 5 | 7 |
| 2007 | 4 | 9 |
| 2008 | 5 | 10 |
| 2009 | 5 | 7 |
| 2010 | 1 | 12 |
| 2011 | 6 | 9 |
| 2012 | 6 | 8 |
| 2013 | 7 | 5 |
| 2014 | 7 | 9 |
| 2015 | 14 | 13 |
| 2016 | 11 | 13 |
| 2017 | 6 | 7 |
| 2018 | 11 | 6 |
| 2019 | 10 | 8 |
| 2020 | 4 | 9 |
| 2021 | 11 | 6 |
| 2022 | 4 | 3 |
| 2023 | 6 | 2 |
| 2024 | 2 | 3 |
| 2025 | 4 | 4 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Handset calibration and location19 Aug 2025US 12,395,592 B1Fuze, Inc.
- Notification system, notification method, and non-transitory computer readable medium storing program8 Jul 2025US 12,354,624 B2NEC Corporation
- Notification system, notification method, and non-transitory computer readable medium storing program24 Jun 2025US 12,340,821 B2NEC Corporation
- Notification system, notification method, and non-transitory computer readable medium storing program13 May 2025US 12,300,269 B2NEC Corporation
- Emergency notifications during scheduled silent modes on mobile phones22 Oct 2024US 12,126,753 B2
- Notification system, notification method, and non-transitory computer readable medium storing program13 Nov 2025US 2025/0349312 A1NEC Corporation
- Handset calibration and location13 Nov 2025US 2025/0350687 A1Fuze, Inc.
- Sound and vibration playing method and apparatus4 Sep 2025US 2025/0278236 A1AAC Acoustic Technologies (Shanghai) Co., Ltd.
- Emergency Bypass of Silent Mode on Mobile Phones5 Jun 2025US 2025/0184424 A1
- Notification system, notification method, and non-transitory computer readable medium storing program8 Aug 2024US 2024/0265939 A1NEC Corporation
Most cited
By later US patents
- Personal communicator having improved contrast control for a liquid crystal, touch sensitive display413US 5,422,656 AInternational Business Machines Corporation · 1995
- Volume control system and method for a mobile communication device153US 7,392,066 B2IXI Mobile (R&D) Ltd. · 2008
- System for inhibiting texting and similar distractions while driving moving vehicles146US 7,856,203 B2CourteousCellphones LLC (Texas) · 2010
- Method and apparatus for determining the behavior of a communications device based upon environmental conditions125US 6,408,187 B1Sun Microsystems, Inc. · 2002
- Function for facilitating use of a double-acting communication device and a double-acting communication device109US 6,014,573 ANokia Mobile Phones Ltd. · 2000