H04M 2203/2044
Group features
Official title: Group features, e.g. closed user group
H04M2203/2044 (Group features) appears on 366 US grants and 379 published applications in this corpus.
Search patents in H04M- Granted patents
- 366
- Published applications
- 379
- Assignees
- 179
- Inventors
- 773
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 2 |
| 2002 | 10 | 27 |
| 2003 | 9 | 16 |
| 2004 | 10 | 15 |
| 2005 | 8 | 19 |
| 2006 | 16 | 24 |
| 2007 | 9 | 30 |
| 2008 | 7 | 24 |
| 2009 | 14 | 27 |
| 2010 | 23 | 24 |
| 2011 | 14 | 27 |
| 2012 | 25 | 13 |
| 2013 | 31 | 23 |
| 2014 | 29 | 16 |
| 2015 | 17 | 16 |
| 2016 | 13 | 5 |
| 2017 | 22 | 8 |
| 2018 | 15 | 9 |
| 2019 | 21 | 18 |
| 2020 | 16 | 12 |
| 2021 | 7 | 5 |
| 2022 | 5 | 6 |
| 2023 | 8 | 7 |
| 2024 | 5 | 3 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for a multi-channel notification service26 May 2026US 12,641,163 B2Twilio Inc.
- Device, system, and method for training machine learning algorithms to generate talkgroups based on in-call data30 Sep 2025US 12,432,530 B2Motorola Solutions, Inc.
- Instant communications system having established communication channels between communication devices15 Apr 2025US 12,278,854 B2
- Location-based social software for mobile devices24 Sep 2024US 12,101,695 B2Google Inc.
- Techniques for relaying audio messages to devices10 Sep 2024US 12,089,120 B2Apple Inc.
- System and method for a multi-channel notification service24 Sep 2026US 2026/0292039 A1Twilio Inc.
- Wireless intercom device for bike and communication method thereof5 Mar 2026US 2026/0067392 A1Kido Sports Co., Ltd.
- Instant communications system having established communication channels between communication devices17 Jul 2025US 2025/0233903 A1
- Techniques for relaying audio messages to devices28 Nov 2024US 2024/0397291 A1Apple Inc.
- System and method for a multi-channel notification service7 Nov 2024US 2024/0372927 A1Twilio Inc.
Most cited
By later US patents
- Distributed system to intelligently establish sessions between anonymous users over various networks1,052US 6,564,261 B1Telefonaktiebolaget LM Ericsson (publ) · 2003
- Location sharing and tracking using mobile phones or other wireless devices369US 7,353,034 B2X One, Inc. · 2008
- Personal user network (closed user network) PUN/CUN317US 6,252,952 B1AT&T Corp. · 2001
- Location sharing and tracking using mobile phones or other wireless devices312US 8,538,458 B2X One, Inc. · 2013
- Group-oriented communications user interface299US 5,579,472 ANovalink Technologies, Inc. · 1996