H04M 1/72511
Searching for available channels
H04M1/72511 (Searching for available channels) appears on 93 US grants and 9 published applications in this corpus.
Search patents in H04M- Granted patents
- 93
- Published applications
- 9
- Assignees
- 49
- Inventors
- 171
- Latest grant
- 8 Oct 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 8 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 0 |
| 2003 | 2 | 2 |
| 2004 | 1 | 0 |
| 2005 | 2 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and device for adjusting frequencies of intercom apparatuses8 Oct 2019US 10,439,660 B2Beijing Xiaomi Mobile Software Co., Ltd.
- Methods and apparatus for flexible bandwidth operation21 May 2019US 10,299,260 B2QUALCOMM Incorporated
- Wireless headset system with two different radio protocols5 Dec 2017US 9,838,062 B2GN Netcom A/S
- Microphone system and method for selecting an operating frequency for a or said microphone system and computer program10 Nov 2015US 9,184,858 B2Robert Bosch GmbH
- Traffic distribution in a wireless communication system3 Aug 2010US 7,768,967 B1Sprint Communications Co.L.P.
- Method and device for adjusting frequencies of intercom apparatuses17 May 2018US 2018/0138933 A1Beijing Xiaomi Mobile Software Co., Ltd.
- Methods and apparatus for flexible bandwidth operation23 Nov 2017US 2017/0339677 A1QUALCOMM Incorporated
- Wireless headset system with two different radio protocols30 Jun 2016US 2016/0191093 A1GN Netcom A/S
- Microphone system and method for selecting an operating frequency for a or said microphone system and computer program8 Nov 2012US 2012/0281848 A1Robert Bosch GmbH
- Wirefree intercom having low power system and process1 Nov 2007US 2007/0254680 A1
Most cited
By later US patents
- Call set-up and spectrum sharing in radio communication on systems with dynamic channel allocation277US 5,497,505 ABell Canada International Inc. · 1996
- Cordless telephone arranged for operating with multiple portable units in a frequency hopping system143US 5,758,290 ALucent Technologies Inc. · 1998
- Multi-mode communication network with handset-selected channel assignments140US 5,774,805 AGTE Mobile Communications Service Corporation · 1998
- Method and apparatus for optimum channel assignment132US 5,203,012 AMotorola, Inc. · 1993
- Call set-up and spectrum sharing in radio communication on systems with dynamic channel allocation128US 5,276,908 ABCE Telecom International, Inc. · 1994