IP Library Assignment 013344/0458
Patent Assignment
Reel/Frame 013344/0458

Assignment of Assignor's Interest

Recorded: 2002-09-30 Pages: 3
Assignors
CHANG, FRANK F.
Executed: 2002-09-18
FU, DIANKUI
Executed: 2002-09-19
Assignee
SCHLUMBERGER TECHNOLOGY CORPORATION
110 SCHLUMBERGER DRIVE, SUGAR LAND, TEXAS, 77478
Covered Property (1)
Novel Fluid System Having Controllable Reversible Viscosity
Patent: 7,119,050 →
Application: 10/065,144 →
Publication: US 2003/0119680
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger and Change of Name Oct 1, 2019
From: PAUL WURTH REFRACTORY & ENGINEERING GMBH; PAUL WURTH UMWELTTECHNIK GMBH
To: PAUL WURTH DEUTSCHLAND GMBH
Reel/Frame 050592/0605 →