IP Library › Assignment 035247/0622
Patent Assignment
Reel/Frame 035247/0622

Assignment of Assignor's Interest

Recorded: 2015-03-25 Pages: 4
Assignor
CONVERGENT COMMUNICATIONS, INC.
Executed: 2014-07-30
Assignee
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION
1001 AIR BRAKE AVENUE, A DELAWARE CORPORATION, WILMERDING, PENNSYLVANIA, 15148
Covered Properties (2)
Railroad Signaling and Communication System Using a Fail-Safe Voltage Sensor to Verify Trackside Conditions in Safety-Critical Railroad Applications
Patent: 8,989,926 →
Application: 12/620,942 →
Publication: US 2011/0118913
Railroad Signaling and Communication System Using a Fail-Safe Voltage Sensor to Verify Trackside Conditions in Safety-Critical Railroad Applications
Patent: 9,457,821 →
Application: 14/663,593 →
Publication: US 2015/0191185
Related Assignments (2)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Nov 19, 2009
From: PRETORIUS, FRANCOIS; HILL, DAVID L.; WISNIEWSKI, CHARLES A.; LOWE, LAWRENCE DELOSS, III
To: CONVERGENT COMMUNICATIONS, INC.
Reel/Frame 023542/0229 →
Assignment of Assignor's Interest Mar 25, 2015
From: PRETORIUS, FRANCOIS; HILL, DAVID L.; WISNIEWSKI, CHARLES A.; LOWE, LAWRENCE DELOSS, III
To: CONVERGENT COMMUNICATIONS, INC.
Reel/Frame 035247/0527 →