Patent Assignment
Reel/Frame 006521/0879
Assignment of Assignors Interest.
Recorded: 1992-12-07
Pages: 3
Assignors
MUELLER, HEINZ
Executed: 1992-11-09
HEROLD, CLAUS-PETER
Executed: 1992-11-09
WESTFECHTEL, ALFRED
Executed: 1992-11-09
VON TAPAVICZA, STEPHAN
Executed: 1992-11-09
Assignee
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN (HENKEL KGAA)
HENKELSTRASSE 67, POSTFACH 1100, DUESSELDORF, D-4000, GERMANY
Covered Property
(1)
Fluid-Drill-Hole Treatment Agents Based on Carbonic Acid Diesters
Patent:
5,461,028 →
Application:
07/955,738 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 28, 2003
From: HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN
To: COGNIS DEUTSCHLAND GMBH & CO. KG
Reel/Frame 014083/0112 →
Change of Name
Feb 8, 2011
From: COGNIS OLEOCHEMICALS GMBH
To: EMERY OLEOCHEMICALS GMBH
Reel/Frame 025766/0142 →
Assignment of Assignor's Interest
Feb 8, 2011
From: COGNIS DEUTSCHLAND GMBH & CO. KG
To: COGNIS OLEOCHEMICALS GMBH
Reel/Frame 025766/0308 →