Patent Assignment
Reel/Frame 025499/0052
Assignment of Assignor's Interest
Recorded: 2010-12-16
Pages: 2
Assignors
BIERDEL, MICHAEL, DR.
Executed: 2010-10-26
KONIG, THOMAS, DR.
Executed: 2010-10-26
LIESENFELDER, ULRICH
Executed: 2010-10-26
Assignee
BAYER TECHNOLOGY SERVICES GMBH
51368 LEVERKUSEN, LEVERKUSEN, 51368, GERMANY
Covered Property
(1)
Single-Flighted Screw Elements With a Reduced Tip Angle
Application:
12/999,116 →
Publication:
US 2011/0112255
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 →