IP Library Assignment 025511/0720
Patent Assignment
Reel/Frame 025511/0720

Assignment of Assignor's Interest

Recorded: 2010-12-16 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 Reduced Energy Input During the Build-Up of Pressure
Patent: 9,808,978 →
Application: 12/999,409 →
Publication: US 2011/0180949
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 →