Paul D DeFrain

This inventor holds 4 USPTO granted patents and 2 published patent applications. Top assignees: Nortel Networks Corporation, Rockstar Consortium US LP. Active years: 2007-2013.

USPTO Granted Patents = 4 (Patent Applications = 2)

Average Co-Inventor Count = 2.0

ph-index = 3

Forward Citations = 35(Granted Patents)

Company Filing History:

3 out of 4,171

Nortel Networks Corporation

patents

1 out of 254

Rockstar Consortium US LP

patents

Years Active: 2007-2013

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8554828 - Distributed call server supporting communication sessions in a communication system and method (2013-10-08),

2. 7765302 - Distributed call server supporting communication sessions in a communication system and method (2010-07-27),

3. 7606181 - Apparatus, method, and computer program for processing audio information of a communication session (2009-10-20),

4. 7281051 - Apparatus, method, and computer program for managing resources in a communication system (2007-10-09),

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2 patents pending:

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1 patent pending (EPO):

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