H04W 4/20
Services signaling
Official title: Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
H04W4/20 (Services signaling) appears on 7,374 US grants and 9,365 published applications in this corpus.
Search patents in H04W- Granted patents
- 7,374
- Published applications
- 9,365
- Assignees
- 2,169
- Inventors
- 14,349
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 13 | 0 |
| 2001 | 6 | 8 |
| 2002 | 18 | 56 |
| 2003 | 16 | 30 |
| 2004 | 20 | 70 |
| 2005 | 16 | 60 |
| 2006 | 44 | 63 |
| 2007 | 35 | 109 |
| 2008 | 34 | 123 |
| 2009 | 56 | 207 |
| 2010 | 73 | 277 |
| 2011 | 134 | 331 |
| 2012 | 206 | 502 |
| 2013 | 324 | 661 |
| 2014 | 458 | 837 |
| 2015 | 532 | 781 |
| 2016 | 571 | 728 |
| 2017 | 634 | 712 |
| 2018 | 653 | 629 |
| 2019 | 744 | 706 |
| 2020 | 675 | 627 |
| 2021 | 547 | 492 |
| 2022 | 437 | 445 |
| 2023 | 398 | 348 |
| 2024 | 342 | 260 |
| 2025 | 261 | 204 |
| 2026 | 112 | 99 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Audio signal encoding for device control or content access in telecommunications6 Oct 2026US 12,756,993 B2Bandwidth Inc.
- Blockchain-based system for storing handle data of online platforms29 Sep 2026US 12,748,815 B2T-Mobile USA, Inc.
- Mobile advertisement reporting system29 Sep 2026US 12,749,095 B2Theatricality LLC
- Methods, systems, and computer readable media for service aggregation for alternate routing of callback messages29 Sep 2026US 12,750,641 B2Oracle International Corporation
- Service execution handling15 Sep 2026US 12,739,305 B2Telefonaktiebolaget LM Ericsson (publ)
- Method for sending information, method for receiving information, and communication device8 Oct 2026US 2026/0312755 A1Beijing Xiaomi Mobile Software Co., Ltd.
- Communication method and communication device8 Oct 2026US 2026/0313326 A1Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- Methods and apparatus to compensate for server-generated errors in database proprietor impression data due to misattribution and/or non-coverage1 Oct 2026US 2026/0301011 A1The Nielsen Company (US), LLC
- Information reporting method, and device1 Oct 2026US 2026/0304242 A1Beijing Xiaomi Mobile Software Co., Ltd.
- Operating wireless devices in multiple types of networks1 Oct 2026US 2026/0304538 A1
Most cited
By later US patents
- Personal communications internetworking1,899US 5,742,905 ABell Communications Research, Inc. · 1998
- Interactive advisory system1,220US 6,980,909 B2WeatherBank, Inc. · 2005
- Interactive advisory system1,088US 8,909,679 B2Locator IP, L.P. · 2014
- Interactive advisory system1,080US 9,191,776 B2Locator IP, L.P. · 2015
- Interactive advisory system1,080US 9,204,252 B2Locator IP, L.P. · 2015