Robert Lowmaster — 11 Patents at AT&T

Robert Lowmaster has been granted 11 US patents while listed as an inventor at AT&T. The first was granted in 2007 and the most recent in January 2016. Robert Lowmaster ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Robert Lowmaster in Bartlett, IL, US.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
9246879	Methods and apparatus to form secure cross-virtual private network communication sessions	Mark Elias	2016-01-26	$23,131,000
9154336	Methods and apparatus to implement voice over internet protocol (VoIP) phones	Mark Elias	2015-10-06	$23,002,000
9100237	VoIP 911 address locator service	—	2015-08-04	$21,565,000
8879543	Methods and apparatus to form secure cross-virtual private network communication sessions	Mark Elias	2014-11-04	$17,948,000
8391276	Methods and apparatus to form secure cross-virtual private network communications sessions	Mark Elias	2013-03-05	$19,542,000
8279850	Methods and apparatus to implement voice over internet protocol (VoIP) phones	Mark Elias	2012-10-02	$27,024,000
8107462	System and method of routing telephone calls	—	2012-01-31	$1,732,000
7664251	Abbreviated dialing between PBX and Centrex systems using a VoIP platform	—	2010-02-16	$11,676,000
7406158	Method and system for playing packetized announcements to telephone network end office switching systems from a centralized digital recorded announcement unit	Sidney L. Underwood	2008-07-29	$57,421,000
7356023	System and method for facilitating packetized calls between managed networks	—	2008-04-08	$622,000
7260089	Remote worker access on networked PBX systems using a VoIP platform	—	2007-08-21	$1,258,000

Robert Lowmaster — 11 Patents

Issued Patents All Time

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