H04M 1/0289
Telephone sets for operators
Official title: {Telephone sets for operators}
H04M1/0289 (Telephone sets for operators) appears on 51 US grants and 33 published applications in this corpus.
Search patents in H04M- Granted patents
- 51
- Published applications
- 33
- Assignees
- 34
- Inventors
- 116
- Latest grant
- 2 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 1 |
| 2004 | 2 | 4 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 2 | 3 |
| 2010 | 1 | 1 |
| 2011 | 1 | 3 |
| 2012 | 3 | 1 |
| 2013 | 2 | 3 |
| 2014 | 1 | 0 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- VoIP analog telephone system2 Apr 2024US 11,949,819 B2NT IP Holdings, LLC
- VoIP analog telephone system28 Feb 2023US 11,595,530 B2NetTALK.com, Inc.
- VoIP analog telephone system23 Feb 2021US 10,931,828 B2NetTALK.com, Inc.
- VoIP analog telephone system18 Jun 2019US 10,326,887 B2NetTALK.com, Inc.
- Information system with detachable information module31 Oct 2017US 9,807,242 B2BlackBerry Limited
- VoIP Analog Telephone System6 Jul 2023US 2023/0216966 A1NetTALK.com, Inc.
- VoIP Analog Telephone System10 Jun 2021US 2021/0176362 A1NetTALK.com, Inc.
- Bidirectional video communication system and kiosk terminal31 Dec 2020US 2020/0413009 A1Panasonic Intellectual Property Management Co., Ltd.
- VoIP Analog Telephone System3 Oct 2019US 2019/0306323 A1NetTALK.com, Inc.
- VoIP Analog Telephone System16 Nov 2017US 2017/0331958 A1NetTALK.com, Inc.
Most cited
By later US patents
- Modular communication apparatus203US 5,625,673 ALucent Technologies Inc. · 1997
- Telephone-terminal combination with plural keyboards95US 5,577,118 AVeriFone, Inc. · 1996
- Screen-based telephone set for interactive enhanced telephony service60US 5,615,257 ANorthern Telecom Limited · 1997
- Modular telephone keyset structure45US 4,375,584 ASiemens Aktiengesellschaft · 1983
- All-in-one headset40US 7,031,475 B2Matsushita Electric Industrial Co., Ltd. · 2006