H04M 2203/2055
Line restrictions
H04M2203/2055 (Line restrictions) appears on 5 US grants and 5 published applications in this corpus.
Search patents in H04M- Granted patents
- 5
- Published applications
- 5
- Assignees
- 5
- Inventors
- 10
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year.
Recent patents
- Phone number list management7 Oct 2025US 12,438,981 B2T-Mobile USA, Inc.
- Phone number list management11 Jun 2024US 12,010,263 B2T-Mobile USA, Inc.
- Methods, systems, and computer program products for managing operation of a portable electronic device2 Dec 2014US 8,902,054 B2Sitting Man, LLC
- Systems and methods for implementing a parental control feature within a telecommunications network5 Jul 2011US 7,974,400 B1AT&T Intellectual Property I, L. P.
- Systems and methods for implementing a parental control feature within a telecommunications network20 Nov 2007US 7,298,835 B1AT&T BLS Intellectual Property, Inc.
- Phone number list management5 Sep 2024US 2024/0297933 A1T-Mobile USA, Inc.
- Phone number list management13 Apr 2023US 2023/0110974 A1T-Mobile USA, Inc.
- Transmission Method And Device For Voice Data7 Jul 2016US 2016/0196836 A1Zte Corporation
- Monitoring inmate calls using silence recognition software to detect unauthorized call connecting6 Sep 2012US 2012/0224678 A1
- Methods, systems, and computer program products for managing operation of a portable electronic device16 Aug 2012US 2012/0206254 A1Sitting Man, LLC
Most cited
By later US patents
- Methods, systems, and computer program products for managing operation of a portable electronic device148US 8,902,054 B2Sitting Man, LLC · 2014
- Systems and methods for implementing a parental control feature within a telecommunications network12US 7,298,835 B1AT&T BLS Intellectual Property, Inc. · 2007
- Systems and methods for implementing a parental control feature within a telecommunications network2US 7,974,400 B1AT&T Intellectual Property I, L. P. · 2011
- Phone number list management1US 12,010,263 B2T-Mobile USA, Inc. · 2024