H04B 3/544
Setting up communications
Official title: {Setting up communications; Call and signalling arrangements}
H04B3/544 (Setting up communications) appears on 236 US grants and 263 published applications in this corpus.
Search patents in H04B- Granted patents
- 236
- Published applications
- 263
- Assignees
- 128
- Inventors
- 433
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 0 | 7 |
| 2007 | 3 | 5 |
| 2008 | 4 | 4 |
| 2009 | 1 | 10 |
| 2010 | 2 | 4 |
| 2011 | 2 | 10 |
| 2012 | 12 | 22 |
| 2013 | 10 | 17 |
| 2014 | 16 | 23 |
| 2015 | 25 | 25 |
| 2016 | 26 | 24 |
| 2017 | 21 | 16 |
| 2018 | 18 | 11 |
| 2019 | 15 | 11 |
| 2020 | 24 | 21 |
| 2021 | 11 | 9 |
| 2022 | 11 | 13 |
| 2023 | 10 | 8 |
| 2024 | 8 | 5 |
| 2025 | 12 | 11 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Systems and methods for creating device networks30 Jul 2026US 2026/0223273 A1Visionary Technologies, Inc.
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Most cited
By later US patents
- Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves478US 9,768,833 B2AT&T Intellectual Property I, L. P. · 2017
- Access point and methods for communicating with guided electromagnetic waves296US 10,284,261 B1AT&T Intellectual Property I, L. P. · 2019
- Power line communication using power factor correction circuits288US 7,205,749 B2Texas Instruments Incorporated · 2007
- Power line coupling device and method of using the same237US 7,248,148 B2Current Technologies, LLC · 2007
- System and method for assigning an identity to an intelligent electronic device134US 7,761,910 B2Power Measurement Ltd. · 2010