IP Library › Assignment 042059/0771
Patent Assignment
Reel/Frame 042059/0771

Nunc Pro Tunc Assignment

Recorded: 2017-04-19 Pages: 5
Assignor
HPC ENERGY TECHNOLOGIES LTD.
Executed: 2017-04-11
Assignee
VERTEX DOWNHOLE LTD.
6806 RAILWAY STREET SE, CALGARY, T2H 3A8, CANADA
Covered Property (1)
Mud Pulser with Poppet Valve, Having Linear Displacement Determination Means
Patent: 9,638,025 →
Application: 14/600,792 →
Publication: US 2016/0208953
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 20, 2015
From: PARE, QUENTIN; BROWN, CARL; AUER, THOMAS; THOMAS, BEN
To: HPC ENERGY SERVICES LTD.
Reel/Frame 034761/0579 →
Assignment of Assignor's Interest Nov 10, 2015
From: HPC ENERGY SERVICES LTD.
To: HPC ENERGY TECHNOLOGIES LTD.
Reel/Frame 037006/0257 →
Assignment of Assignor's Interest Feb 1, 2023
From: VERTEX DOWNHOLE LTD.
To: 2435819 ALBERTA LTD.
Reel/Frame 062566/0423 →
Change of Name Feb 3, 2023
From: 2435819 ALBERTA LTD.
To: VERTEX DOWNHOLE TECHNOLOGIES INC.
Reel/Frame 062658/0478 →