H04Q 3/04
Circuit arrangements for receivers of routing digits
H04Q3/04 (Circuit arrangements for receivers of routing digits) appears on 19 US grants and 14 published applications in this corpus.
Search patents in H04Q- Granted patents
- 19
- Published applications
- 14
- Assignees
- 10
- Inventors
- 24
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 3 | 4 |
| 2018 | 3 | 1 |
| 2019 | 0 | 1 |
| 2020 | 3 | 0 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 2 | 0 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Identifying and processing, for priority, calls in data communications server8 Sep 2026US 12,732,579 B18x8, Inc.
- Apparatus and method for providing telecommunication routing data16 Dec 2025US 12,499,148 B2NetNumber, Inc.
- Customization of emergency notifications for communications services27 May 2025US 12,317,015 B18x8, Inc.
- Customization of emergency notifications for communications services10 Oct 2023US 11,785,363 B18x8, Inc.
- Identifying and processing, for priority, calls in data communications server21 Mar 2023US 11,611,654 B18×8, Inc.
- Apparatus and method for providing telecommunication routing data26 Feb 2026US 2026/0057006 A1NetNumber, Inc.
- Apparatus and method for providing telecommunication routing data14 Nov 2024US 2024/0378231 A1NetNumber, Inc.
- Country-specific telephone number system analysis system using machine learning technique, and telephone connection method using same10 Oct 2019US 2019/0312968 A1Vimio Co. Ltd
- Call handling based on augmented caller information15 Feb 2018US 2018/0048764 A1Verizon Patent and Licensing Inc.
- Adding additional information to caller id information21 Dec 2017US 2017/0366666 A1Verizon Patent and Licensing Inc.
Most cited
By later US patents
- Identifying and processing of unreturned calls in IPBX36US 9,432,519 B18x8, Inc. · 2016
- Adding additional information to caller ID information18US 9,774,731 B1Verizon Patent and Licensing Inc. · 2017
- Customization of emergency notifications for telecommunications services4US 10,547,916 B18x8, Inc. · 2020
- Customization of emergency notifications for communications services2US 11,785,363 B18x8, Inc. · 2023
- Identifying and processing of unreturned calls in IPBX2US 9,578,166 B18x8, Inc. · 2017