H04M 3/42306
Number translation services
Official title: {Number translation services, e.g. premium-rate, freephone or vanity number services}
H04M3/42306 (Number translation services) appears on 220 US grants and 178 published applications in this corpus.
Search patents in H04M- Granted patents
- 220
- Published applications
- 178
- Assignees
- 86
- Inventors
- 286
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 4 |
| 2002 | 4 | 7 |
| 2003 | 3 | 3 |
| 2004 | 2 | 1 |
| 2005 | 1 | 2 |
| 2006 | 4 | 5 |
| 2007 | 2 | 10 |
| 2008 | 0 | 1 |
| 2009 | 6 | 4 |
| 2010 | 3 | 9 |
| 2011 | 6 | 3 |
| 2012 | 9 | 5 |
| 2013 | 14 | 9 |
| 2014 | 14 | 12 |
| 2015 | 8 | 14 |
| 2016 | 17 | 22 |
| 2017 | 24 | 9 |
| 2018 | 16 | 12 |
| 2019 | 18 | 13 |
| 2020 | 13 | 12 |
| 2021 | 10 | 7 |
| 2022 | 6 | 6 |
| 2023 | 6 | 4 |
| 2024 | 2 | 2 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Enhanced communication services based on itinerary data4 Aug 2026US 12,701,390 B2T-Mobile USA, Inc.
- Systems and methods for tagging fraudulent phone numbers3 Jun 2025US 12,323,552 B2Somos, Inc.
- Systems and methods for phone number fraud prediction27 May 2025US 12,314,968 B2Somos, Inc.
- Telecommunications validation system and method15 Oct 2024US 12,120,263 B2Pindrop Security, Inc.
- Telecommunication incorporating GPS and identification masking20 Aug 2024US 12,069,204 B2Softrend Ipl, LLC
- Systems and methods for tagging fraudulent phone numbers31 Jul 2025US 2025/0247474 A1
- Telecommunications validation system and method30 Jan 2025US 2025/0039295 A1Pindrop Security, Inc.
- Telecommunication Incorporating GPS and Identification Masking12 Dec 2024US 2024/0414266 A1Softrend Ipl, LLC
- Enhanced communication services based on itinerary data22 Feb 2024US 2024/0064499 A1T-Mobile USA, Inc.
- Origination and Destination Based Routing21 Dec 2023US 2023/0412949 A1Comcast Cable Communications, LLC
Most cited
By later US patents
- Telephone system for connecting a customer to a supplier of goods744US 4,757,267 AApplied Telematics, Inc. · 1988
- Method and system for dynamic customized call routing338US 5,530,744 AAT&T Corp. · 1996
- Point-of-presence call center management system222US 6,011,844 ACallnet Communications · 2000
- Telemarketing complex performance management system198US 5,164,983 AAmerican Telephone and Telegraph Company · 1992
- Method and system for routing phone calls based on voice and data transport capability192US 5,533,108 AAT&T Corp. · 1996