Patent Assignment
Reel/Frame 024028/0943
Assignment of Assignor's Interest
Recorded: 2010-03-04
Pages: 4
Assignors
WU, SHANGHUA
Executed: 2010-02-26
XIE, YUMING
Executed: 2010-02-26
COKER, CHRISTOPHER
Executed: 2010-02-26
CHATTERJEE, DILIP
Executed: 2010-02-26
Assignee
OXANE MATERIALS, INC.
467 WEST 38TH STREET, PINE FOREST OFFICE BUILDING #21, HOUSTON, TEXAS, 77018
Covered Property
(1)
Self-Toughened High-Strength Proppant And Methods Of Making Same
Application:
61/308,144 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Nunc Pro Tunc Assignment
Mar 24, 2010
From: FANG, CHRISTOPHER Y.; XIE, YUMING; CHATTERJEE, DILIP; COKER, CHRISTOPHER E.
To: OXANE MATERIALS, INC.
Reel/Frame 024131/0837 →
Assignment of Assignor's Interest
Jul 23, 2015
From: OXANE MATERIALS, INC.
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 036174/0785 →