Patent Assignment
Reel/Frame 006003/0248
Assignment of Assignors Interest.
Recorded: 1991-11-15
Pages: 4
Assignors
MUELLER, HEINZ
Executed: 1991-11-05
HEROLD, CLAUS-PETER
Executed: 1991-11-05
VON TAPAVICZA, STEPHAN
Executed: 1991-11-05
FUES, JOHANN F.
Executed: 1991-11-05
Assignee
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN (HENKEL KGAA) A CORPORATION OF THE FED. REP. OF GERMANY
HENKELSTRASSE 67, POSTFACH 1100, D-4000 DUESSELDORF 1, GERMANY
Covered Property
(1)
Use of Selected Oleophilic Alcohols in Water-Based Drilling Fluids of the O/W-Emulsion Type and Corresponding Drilling Fluids with Improved Ecological Acceptability
Patent:
5,194,422 →
Application:
07/773,631 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 3, 1997
From: HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN
To: BAROID LIMITED
Reel/Frame 008587/0106 →
Assignment of Assignor's Interest
May 23, 2000
From: GRIMES, DOUGLAS JOHN
To: HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN; BAROID LIMITED
Reel/Frame 010832/0696 →
Assignment of Assignor's Interest
Mar 25, 2004
From: HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN
To: COGNIS DEUTSCHLAND GMBH & CO. KG
Reel/Frame 014462/0055 →