Patent Assignment
Reel/Frame 018671/0033
Assignment of Assignor's Interest
Recorded: 2006-12-08
Pages: 3
Assignor
LYON, LELAND H.
Executed: 2006-12-08
Assignee
ATLAS COPCO SECOROC AB
BOX 521, FAGERSTA SE-737 25, SWEDEN
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.
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
Jul 21, 2020
From: EPIROC DRILLING TOOLS AKTIEBOLAG
To: TERRAROC FINLAND OY
Reel/Frame 053260/0830 →
Assignment of Assignor's Interest
Dec 1, 2025
From: TERRAROC FINLAND OY
To: TERRAROC FINLAND OY
Reel/Frame 073802/0085 →