IP Library › Assignment 034670/0938
Patent Assignment
Reel/Frame 034670/0938

Assignment of Assignor's Interest

Recorded: 2015-01-09 Pages: 11
Assignors
HWANG, CHIH-CHAU
Executed: 2014-12-04
SAINI, RAJESH K.
Executed: 2014-12-04
VIGDERMAN, LEONID
Executed: 2014-12-04
TREYBIG, DUANE
Executed: 2014-12-04
SMITH, CLAYTON S.
Executed: 2014-12-08
SAMUEL, MATHEW M.
Executed: 2015-01-06
SMITH, KERN L.
Executed: 2014-12-08
Assignee
CLEARWATER INTERNATIONAL LLC
2000 ST. JAMES PLACE, HOUSTON, TEXAS, 77056
Covered Property (1)
Method to Consolidate Solid Materials During Subterranean Treatment Operations
Patent: 9,909,404 →
Application: 14/546,288 →
Publication: US 2015/0068747
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Oct 9, 2015
From: CLEARWATER INTERNATIONAL, L.L.C.
To: LUBRIZOL OILFIELD SOLUTIONS, INC.
Reel/Frame 036822/0379 →
Assignment of Assignor's Interest Jan 18, 2018
From: LUBRIZOL OILFIELD SOLUTIONS, INC.
To: THE LUBRIZOL CORPORATION
Reel/Frame 044655/0922 →