-
Creating a communication group
-
Patent number 10,154,385
-
Issue date Dec 11, 2018
-
Microsoft Technology Licensing, LLC
-
Darren Alexander Apfel
-
G08 - SIGNALLING
-
Current updates
-
Patent number 9,602,611
-
Issue date Mar 21, 2017
-
Microsoft Technology Licensing, LLC
-
Darren A. Apfel
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
Creating a communication group
-
Patent number 9,578,468
-
Issue date Feb 21, 2017
-
Microsoft Technology Licensing, LLC
-
Darren Alexander Apfel
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
Creating a communication group
-
Patent number 8,639,229
-
Issue date Jan 28, 2014
-
Microsoft Corporation
-
Darren A. Apfel
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
Current updates
-
Patent number 8,214,464
-
Issue date Jul 3, 2012
-
Microsoft Corporation
-
Darren A. Apfel
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
Current updates
-
Patent number 8,005,927
-
Issue date Aug 23, 2011
-
Microsoft Corporation
-
Darren A. Apfel
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE