IP Library › Assignment 020007/0143
Patent Assignment
Reel/Frame 020007/0143

Assignment of Assignor's Interest

Recorded: 2007-10-24 Pages: 3
Assignors
DAHLGREN, SCOTT, MR.
Executed: 2005-12-13
LEANY, FRANCIS, MR.
Executed: 2005-12-13
Assignee
HALL, DAVID R., MR.
2185 SOUTH LARSEN PARKWAY, PROVO, UTAH, 84606
Covered Property (1)
Hydraulic Drill Bit Assembly
Patent: 7,328,755 →
Application: 11/567,283 →
Publication: US 2007/0114064
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Oct 20, 2008
From: HALL, DAVID R.
To: NOVADRILL, INC.
Reel/Frame 021701/0758 →
Assignment of Assignor's Interest Mar 10, 2010
From: NOVADRILL, INC.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 024055/0378 →