Patent Assignment
Reel/Frame 014520/0544
Assignment of Assignor's Interest
Recorded: 2003-09-16
Pages: 2
Assignors
RAUCHSCHWALBE, GUENTER
Executed: 2003-06-25
EMDE, HERBERT
Executed: 2003-06-30
KISSENER, WOLFRAM
Executed: 2003-07-08
Assignee
BAYER AKTIENGESELLSCHAFT
PATENTE UND LIZENZEN, D51368 LEVERKUSEN, GERMANY
Covered Property
(1)
Process for the Preparation of Isolated 3,4-Diaminobenzenesulphonic Acid
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 1, 2006
From: BAYER AG
To: LANXESS DEUTSCHLAND GMBH
Reel/Frame 018584/0319 →
Assignment of Assignor's Interest
Dec 1, 2009
From: LANXESS DEUTSCHLAND GMBH
To: SALTIGO GMBH
Reel/Frame 023586/0158 →
Assignment of Assignor's Interest
Dec 1, 2009
From: SALTIGO GMBH
To: SYMRISE GMBH & CO. KG
Reel/Frame 023586/0167 →
Merger
Apr 22, 2011
From: SYMRISE GMBH & CO. KG
To: SYMRISE AG
Reel/Frame 026171/0582 →