Patent Assignment
Reel/Frame 022019/0528
Assignment of Assignor's Interest
Recorded: 2008-12-23
Pages: 9
Assignors
POLIZZOTTI, RICHARD S.
Executed: 2008-11-10
PEIFFER, DENNIS GEORGE
Executed: 2008-11-07
GUPTA, RAMESH
Executed: 2008-11-06
LUTON, MICHAEL J.
Executed: 2008-12-04
POKUTYLOWICZ, NORMAN M.
Executed: 2008-11-05
CARSTENSEN, BARBARA
Executed: 2008-11-12
SPIECKER, PAUL MATTHEW
Executed: 2008-12-01
Assignee
EXXONMOBIL UPSTREAM RESEARCH COMPANY
P.O. BOX 2189, HOUSTON, TEXAS, 77252-2189
Covered Property
(1)
Compressible Objects Having Partial Foam Interiors Combined with a Drilling Fluid to Form a Variable Density Drilling Mud