IP Library › Assignment 027577/0117
Patent Assignment
Reel/Frame 027577/0117

Assignment of Assignor's Interest

Recorded: 2012-01-23 Pages: 3
Assignor
ZIEROLF, JOSEPH A
Executed: 1999-11-29
Assignee
IN-DEPTH, INC.
103 ANGELLE CIRCLE, HOUMA, LOUISIANA, 70360
Covered Property (1)
Method and Apparatus for Determining Position in a Pipe
Patent: 9,140,818 →
Application: 13/302,618 →
Publication: US 2012/0298243
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 23, 2012
From: IN-DEPTH, INC.
To: MARATHON OIL COMPANY
Reel/Frame 027577/0262 →
Assignment of Assignor's Interest May 3, 2017
From: MARATHON OIL COMPANY
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 042222/0080 →