IP Library › Assignment 034446/0575
Patent Assignment
Reel/Frame 034446/0575

Assignment of Assignor's Interest

Recorded: 2014-12-10 Pages: 5
Assignor
ERVIN, DAVID L.
Executed: 2014-12-05
Assignee
SMITH INTERNATIONAL, INC.
1310 RANKIN ROAD, HOUSTON, TEXAS, 77073
Covered Property (1)
Cementing Whipstock Apparatus and Methods
Patent: 9,151,136 →
Application: 14/448,718 →
Publication: US 2014/0338908
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 3, 2020
From: SMITH INTERNATIONAL, INC.
To: WELLBORE INTEGRITY SOLUTIONS LLC
Reel/Frame 051470/0680 →
Abl Patent Security Agreement Mar 17, 2020
From: WELLBORE INTEGRITY SOLUTIONS LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 052184/0900 →
Release of Security Interest Jul 20, 2021
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: WELLBORE INTEGRITY SOLUTIONS LLC
Reel/Frame 056910/0165 →