Patent Assignment
Reel/Frame 053260/0830
Assignment of Assignor's Interest
Recorded: 2020-07-21
Pages: 4
Assignor
EPIROC DRILLING TOOLS AKTIEBOLAG
Executed: 2020-06-29
Assignee
TERRAROC FINLAND OY
PIHTISULUNKATU 1 A, TAMPERE, 33330, FINLAND
Covered Property
(1)
Entrainment Fluid Channeling Device for a Down-Hole Drill String
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 8, 2006
From: LYON, LELAND H.
To: ATLAS COPCO SECOROC AB
Reel/Frame 018671/0033 →
Change of Name
Feb 22, 2018
From: ATLAS COPCO SECOROC AB
To: EPIROC DRILLING TOOLS AKTIEBOLAG
Reel/Frame 045405/0345 →
Assignment of Assignor's Interest
Dec 1, 2025
From: TERRAROC FINLAND OY
To: TERRAROC FINLAND OY
Reel/Frame 073802/0085 →