Michael D. Chambers — 15 Patents at AT&T

Michael D. Chambers has been granted 15 US patents while listed as an inventor at AT&T. The first was granted in 2001 and the most recent in August 2013. Michael D. Chambers ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Michael D. Chambers in Plainfield, IL, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
8521543	Method and apparatus for load-based billing in communication networks	Cynthia Florkey, Ruth Gayde	2013-08-27	$1,970,000
8406383	Voice authentication for call control	Cynthia Florkey, Ruth Gayde	2013-03-26	$1,646,000
8380191	Temporary data service in wireless networks	Cynthia Florkey, Ruth Gayde, Patrick J. Walsh	2013-02-19	$1,296,000
8090368	Temporary data service in wireless networks	Cynthia Florkey, Ruth Gayde, Patrick J. Walsh	2012-01-03	$2,134,000
8045973	Mobile device subject to a communication restriction responding to a priority call	—	2011-10-25	$2,400,000
7636425	Voice authentication for call control	Cynthia Florkey, Ruth Gayde	2009-12-22	$2,860,000
7565160	System and method of handling prioritized wireless calls for mobile devices operating in an analog or TDMA mode	Bonnie P. Hitzeman, Rafael Quintero, Douglass H. Riley	2009-07-21	$1,152,000
7310518	Serving roaming mobiles with incorrectly programmed identifiers	—	2007-12-18
7236791	Radio channel allocation for national security and emergency preparedness calls	Renling Lawrence Huang, Ismael Lopez, Rafael Quintero, Douglas Harvey Riley	2007-06-26
7113787	Wireless priority service for intersystem call delivery	Bonnie Marie Hitzeman, Rafael Quintero, Douglas Harvey Riley	2006-09-26	$11,659,000
6941142	Wireless service redirection signaling based on protocol revision	Gabriela M. Abramovici, Yuen-Yin L. Koo, Semyon B. Mizikovsky	2005-09-06	$10,531,000
6782254	Handling of forward-to numbers across regional and political boundaries	Weiqian Dai, Chee Keong Lee, Tony Nguyen	2004-08-24	$7,215,000
6587688	Providing telephone number data for international cellular roamer service	Chee Keong Lee, Tony Nguyen, Charles C Teising, Jr.	2003-07-01	$13,147,000
6389298	Signaling to support wireless service redirection	Gabriela M. Abramovici, Yuen-Yin L. Koo, Semyon B. Mizikovsky	2002-05-14	$8,723,000
6272358	Vocoder by-pass for digital mobile-to-mobile calls	Kenneth W. Brent, Anne Yin-Fee Lee, Chinmei Chen Lee	2001-08-07	$23,107,000

Michael D. Chambers — 15 Patents

Issued Patents All Time

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