H04M 1/573
Line monitoring circuits for detecting caller identification
Official title: {Line monitoring circuits for detecting caller identification}
H04M1/573 (Line monitoring circuits for detecting caller identification) appears on 206 US grants and 85 published applications in this corpus.
Search patents in H04M- Granted patents
- 206
- Published applications
- 85
- Assignees
- 99
- Inventors
- 294
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 14 | 0 |
| 1999 | 18 | 0 |
| 2000 | 10 | 0 |
| 2001 | 24 | 3 |
| 2002 | 19 | 8 |
| 2003 | 13 | 8 |
| 2004 | 7 | 10 |
| 2005 | 10 | 2 |
| 2006 | 5 | 4 |
| 2007 | 4 | 8 |
| 2008 | 7 | 1 |
| 2009 | 2 | 3 |
| 2010 | 0 | 2 |
| 2011 | 3 | 3 |
| 2012 | 3 | 2 |
| 2013 | 2 | 1 |
| 2014 | 5 | 3 |
| 2015 | 2 | 4 |
| 2016 | 2 | 0 |
| 2017 | 3 | 5 |
| 2018 | 4 | 2 |
| 2019 | 4 | 4 |
| 2020 | 6 | 4 |
| 2021 | 1 | 4 |
| 2022 | 4 | 2 |
| 2023 | 2 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Identifying, screening, and blocking of calls from problematic telecommunications carriers and number blocks21 Oct 2025US 12,452,367 B2YouMail, Inc.
- Enhanced caller identification8 Oct 2024US 12,113,924 B2International Business Machines Corporation
- Identifying, screening, and blocking of calls from problematic telecommunications carriers and number blocks30 Apr 2024US 11,973,898 B2YouMail, Inc.
- Method and device for managing incoming calls in a communication terminal25 Jul 2023US 11,711,460 B2Orange
- Providing audio announcement to called parties14 Feb 2023US 11,582,334 B2First Orion Corp.
- Identifying, screening, and blocking of calls from problematic telecommunications carriers and number blocks26 Dec 2024US 2024/0430359 A1YouMail, Inc.
- Enhanced caller identification2 Mar 2023US 2023/0069102 A1International Business Machines Corporation
- Identifying, screening, and blocking of calls from problematic telecommunications carriers and number blocks22 Dec 2022US 2022/0407959 A1YouMail, Inc.
- Method and system for playing promotion media content in telecommunication network17 Feb 2022US 2022/0051293 A1
- Method and device for managing incoming calls in a communication terminal30 Sep 2021US 2021/0306452 A1Orange
Most cited
By later US patents
- Automatic incoming telephone call originating number and party display system234US 4,924,496 ARomek Figa d/b/a Abraham & Sons · 1990
- Automatic incoming telephone call identification and disposition system224US 5,388,150 A1995
- Method and apparatus for displaying at a selected station special service information during a silent interval between ringing190US 4,582,956 AAT&T Bell Laboratories · 1986
- Caller identification and data retrieval system171US 5,734,706 A1998
- Calling number display and recording system138US 5,467,385 A1995