H04R 13/02
Telephone receivers
H04R13/02 (Telephone receivers) appears on 14 US grants and 9 published applications in this corpus.
Search patents in H04R- Granted patents
- 14
- Published applications
- 9
- Assignees
- 11
- Inventors
- 17
- Latest grant
- 28 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 3 |
| 2003 | 3 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Receiver28 Mar 2023US 11,617,049 B2Suzhou Sensorfun Electronics Co., Ltd
- Method for making diaphragm21 Feb 2017US 9,578,434 B2Hon Hai Precision Industry Co., Ltd.
- Handset microphone8 Mar 2016US 9,282,404 B2Kabushiki Kaisha Audio-Technica
- Diaphragm, method making the same and loudspeaker using the same1 Oct 2013US 8,548,188 B2Hon Hai Precision Industry Co., Ltd.
- Portable telephone using bone conduction device31 Mar 2009US 7,512,425 B2Temco Japan Co., Ltd.
- Receiver10 Mar 2022US 2022/0078568 A1Suzhou Sensorfun Electronics Co., Ltd
- Handset microphone25 Dec 2014US 2014/0376750 A1Kabushiki Kaisha Audio-Technica
- Method for making diaphragm21 Nov 2013US 2013/0309400 A1Hon Hai Precision Industry Co., Ltd.
- Diaphragm, method making the same and loudspeaker using the same28 Apr 2011US 2011/0096952 A1Hon Hai Precision Industry Co., Ltd.
- Portable telephone using bone conduction device21 Dec 2006US 2006/0286998 A1Temco Japan Co., Ltd.
Most cited
By later US patents
- Composition, processing and devices including magnetic alloy25US 4,075,437 ABell Telephone Laboratories, Incorporated · 1978
- Portable telephone using bone conduction device15US 7,512,425 B2Temco Japan Co., Ltd. · 2009
- Electromagnetic transducer and portable communicating device13US 6,658,133 B1Matsushita Electric Industrial Co., Ltd. · 2003
- Electromagnetic transducer and portable communication device8US 6,671,383 B2Matsushita Electric Industrial Co., Ltd. · 2003
- Electromagnetic transducer and portable communication device7US 6,920,230 B2Matsushita Electric Industrial Co., Ltd. · 2005