H04Q 3/70
Identification of class of calling subscriber
H04Q3/70 (Identification of class of calling subscriber) appears on 66 US grants and 36 published applications in this corpus.
Search patents in H04Q- Granted patents
- 66
- Published applications
- 36
- Assignees
- 41
- Inventors
- 104
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 3 | 4 |
| 2015 | 2 | 0 |
| 2016 | 0 | 2 |
| 2017 | 4 | 2 |
| 2018 | 3 | 5 |
| 2019 | 3 | 3 |
| 2020 | 1 | 1 |
| 2021 | 2 | 1 |
| 2022 | 2 | 3 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Producing routing information for voice over IP communications4 Aug 2026US 12,701,077 B2VolP-Pal.com, Inc.
- Call classification through analysis of DTMF events5 May 2026US 12,621,382 B2Pindrop Security, Inc.
- Determining a time to permit a communications session to be conducted19 Aug 2025US 12,395,425 B2VolP-Pal.com, Inc.
- Call classification through analysis of DTMF events18 Jun 2024US 12,015,731 B2Pindrop Security, Inc.
- Prioritized call sessions11 Apr 2023US 11,627,392 B2Comcast Cable Communications, LLC
- Call classification through analysis of dtmf events17 Sep 2026US 2026/0281227 A1Pindrop Security, Inc.
- Determining a Time to Permit a Communications Session to be Conducted4 Dec 2025US 2025/0373732 A1Voip-Pal.Com, Inc.
- Call classification through analysis of dtmf events26 Sep 2024US 2024/0323270 A1Pindrop Security, Inc.
- Call classification through analysis of dtmf events20 Oct 2022US 2022/0337924 A1Pindrop Security, Inc.
- Prioritized Call Sessions18 Aug 2022US 2022/0264195 A1Comcast Cable Communications, LLC
Most cited
By later US patents
- Personal communication service with mobility manager848US 5,329,578 ANorthern Telecom Limited · 1994
- Automated call screening283US 5,029,196 ADytel Corporation · 1991
- Language selection for voice messaging system210US 5,440,615 AAT&T Corp. · 1995
- Authenticated communications access service203US 5,181,238 AAT&T Bell Laboratories · 1993
- Automated call screening200US 5,109,405 ADytel Corporation · 1992