Patent Assignment
Reel/Frame 025493/0167
Assignment of Assignor's Interest
Recorded: 2010-12-14
Pages: 2
Assignors
BIERDEL, MICHAEL, DR.
Executed: 2010-11-24
KONIG, THOMAS, DR.
Executed: 2010-11-26
LIESENFELDER, ULRICH
Executed: 2010-11-26
Assignee
BAYER TECHNOLOGY SERVICES GMBH
51368 LEVERKUSEN, LEVERKUSEN, 51368, GERMANY
Covered Property
(1)
Screw Elements with Improved Dispersing Action and Low Energy Input
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Sep 5, 2013
From: BAYER TECHNOLOGY SERVICES GMBH
To: BAYER INTELLECTUAL PROPERTY GMBH
Reel/Frame 031157/0347 →
Assignment of Assignor's Interest
Mar 10, 2016
From: BAYER INTELLECTUAL PROPERTY GMBH
To: BAYER MATERIALSCIENCE AG
Reel/Frame 038056/0732 →
Change of Name
Mar 21, 2016
From: BAYER MATERIALSCIENCE AG
To: COVESTRO DEUTSCHLAND AG
Reel/Frame 038188/0408 →
Change of Name
Apr 7, 2016
From: BAYER MATERIALSCIENCE AG
To: COVESTRO DEUTSCHLAND AG
Reel/Frame 038376/0427 →