Mark O'Brien — 8 Patents at Verizon

Mark O'Brien has been granted 8 US patents while listed as an inventor at Verizon. The first was granted in 1984 and the most recent in October 2013. Mark O'Brien ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Mark O'Brien in Denver, CO, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
8553857	Systems and methods for receiving telephone calls via instant messaging	Joel Hanson, Tony Moey, Mike Kirchner, Tom Galvin, Donald J. Maurer +1 more	2013-10-08	$21,952,000
7496091	Virtual PBX system	Thomas J. Galvin, Michael Kirchner, Anthony W. S. Moey, Joel Hanson	2009-02-24	$191,582,000
7274778	Systems and methods for receiving telephone calls via instant messaging	Joel Hanson, Tony Moey, Mike Kirchner, Tom Galvin, Donald J. Maurer +1 more	2007-09-25	$156,301,000
6775272	Virtual PBX system	Thomas J. Galvin, Michael Kirchner, Anthony W. S. Moey, Joel Hanson	2004-08-10
6697474	Systems and methods for receiving telephone calls via instant messaging	Joel Hanson, Tony Moey, Mike Kirchner, Tom Galvin, Donald J. Maurer +1 more	2004-02-24
6393017	Virtual PBX system	Thomas J. Galvin, Michael Kirchner, Anthony W. S. Moey, Joel Hanson	2002-05-21
6351464	Virtual second line hybrid network communication system	Tom Galvin, Joel Hanson, Mike Kirchner, Tony Moey	2002-02-26
4452461	Boomerang	—	1984-06-05

Mark O'Brien — 8 Patents

Issued Patents All Time

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