Patent Assignment
Reel/Frame 017900/0530
Assignment of Assignor's Interest
Recorded: 2006-05-15
Pages: 2
Assignor
CHOI, THOMAS
Executed: 2006-05-12
Assignee
NORTEL NETWORKS LIMITED
2351 BOULEVARD ALFRED-NOBEL, ST LAURENT, QUEBEC, H4S 2A9, CANADA
Covered Property
(1)
System and methods for filtering electronic communications
Application:
11/433,940 →
Publication:
US 2007/0282770
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 28, 2011
From: NORTEL NETWORKS LIMITED
To: ROCKSTAR BIDCO, LP
Reel/Frame 027143/0717 →
Assignment of Assignor's Interest
Mar 11, 2014
From: ROCKSTAR BIDCO, LP
To: ROCKSTAR CONSORTIUM US LP
Reel/Frame 032425/0867 →
Assignment of Assignor's Interest
Feb 9, 2015
From: ROCKSTAR CONSORTIUM US LP; ROCKSTAR CONSORTIUM LLC; BOCKSTAR TECHNOLOGIES LLC; CONSTELLATION TECHNOLOGIES LLC
To: RPX CLEARINGHOUSE LLC
Reel/Frame 034924/0779 →