H04Q 3/0025
Provisions for signalling
Official title: {Provisions for signalling}
H04Q3/0025 (Provisions for signalling) appears on 1,241 US grants and 892 published applications in this corpus.
Search patents in H04Q- Granted patents
- 1,241
- Published applications
- 892
- Assignees
- 336
- Inventors
- 1,975
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 10 | 0 |
| 1996 | 24 | 0 |
| 1997 | 19 | 0 |
| 1998 | 30 | 0 |
| 1999 | 45 | 0 |
| 2000 | 42 | 0 |
| 2001 | 62 | 28 |
| 2002 | 70 | 101 |
| 2003 | 67 | 108 |
| 2004 | 79 | 99 |
| 2005 | 64 | 101 |
| 2006 | 121 | 83 |
| 2007 | 76 | 85 |
| 2008 | 62 | 47 |
| 2009 | 68 | 25 |
| 2010 | 70 | 46 |
| 2011 | 51 | 39 |
| 2012 | 58 | 25 |
| 2013 | 49 | 19 |
| 2014 | 36 | 12 |
| 2015 | 25 | 12 |
| 2016 | 14 | 7 |
| 2017 | 13 | 9 |
| 2018 | 9 | 8 |
| 2019 | 13 | 7 |
| 2020 | 7 | 11 |
| 2021 | 8 | 4 |
| 2022 | 8 | 7 |
| 2023 | 6 | 5 |
| 2024 | 8 | 2 |
| 2025 | 3 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exchange, and telephone exchange method25 Aug 2026US 12,719,983 B2NEC Platforms, Ltd.
- Systems and methods for communications node upgrade and selection12 May 2026US 12,627,570 B2Level 3 Communications, LLC
- Calling line/name identification of enterprise subscribers in mobile calls23 Sep 2025US 12,425,814 B2Tango Networks, Inc.
- Clearing house signaling11 Mar 2025US 12,250,227 B2Global Business Software Development Technologies, Inc.
- Systems and methods for communications node upgrade and selection25 Feb 2025US 12,238,548 B2Level 3 Communications, LLC
- Method and apparatus for transmitting data via nfc for mobile applications including mobile payments and ticketing1 May 2025US 2025/0139398 A1iCashe, Inc.
- Systems and methods for communications node upgrade and selection9 Jan 2025US 2025/0016587 A1Level 3 Communications, LLC
- Exchange, and telephone exchange method4 Jul 2024US 2024/0223703 A1NEC Platforms, Ltd.
- Systems and methods for communications node upgrade and selection23 May 2024US 2024/0172010 A1Level 3 Communications, LLC
- Systems and methods for communications node upgrade and selection2 Nov 2023US 2023/0354068 A1Level 3 Communications, LLC
Most cited
By later US patents
- Providing collaborative installation management in a network-based supply chain environment1,805US 6,606,744 B1Accenture LLP · 2003
- Voice over data telecommunications network architecture778US 6,614,781 B1Level 3 Communications, LLC · 2003
- Internet telephone service510US 6,069,890 ABell Atlantic Network Services, Inc. · 2000
- Apparatus and method for intelligent scalable switching network395US 6,640,239 B1Garuda Network Corporation · 2003
- Network-based method and apparatus for initiating and completing a telephone call via the internet325US 6,144,667 AAT&T Corp. · 2000