Patent Assignment
Reel/Frame 016590/0009
Assignment of Assignor's Interest
Recorded: 2005-05-23
Pages: 2
Assignors
SPINDLER, CHRISTIAN
Executed: 2005-05-04
KEILHOFER, GREGOR
Executed: 2005-05-05
PLANK, JOHANN
Executed: 2005-05-07
Assignee
DEGUSSA CONSTRUCTION POLYMERS GMBH
DR.-ALBERT-FRANK-STRASSE 32, TROSTBERG, 83308, GERMANY
Covered Property
(1)
Cementing Subterranean Zones Using Cement Compositions Containing Biodegradable Dispersants
Application:
10/170,399 →
Publication:
US 2003/0230407
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.