IP Library Assignment 023542/0229
Patent Assignment
Reel/Frame 023542/0229

Assignment of Assignor's Interest

Recorded: 2009-11-19 Pages: 7
Assignors
PRETORIUS, FRANCOIS
Executed: 2009-10-30
HILL, DAVID L.
Executed: 2009-11-03
WISNIEWSKI, CHARLES A.
Executed: 2009-11-02
LOWE, LAWRENCE DELOSS, III
Executed: 2009-11-03
Assignee
CONVERGENT COMMUNICATIONS, INC.
12999 MINERICH ROAD, PAONIA, COLORADO, 81428
Covered Property (1)
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
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Mar 25, 2015
From: CONVERGENT COMMUNICATIONS, INC.
To: WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION
Reel/Frame 035247/0622 →