Patent Assignment
Reel/Frame 031040/0184
Assignment of Assignor's Interest
Recorded: 2013-08-06
Pages: 3
Assignor
ALLESSA GMBH
Executed: 2013-06-10
Assignee
TOUGAS OILFIELD SOLUTIONS GMBH
ALT FECHENHEIM 34, FRANKFURT, 60386, GERMANY
Covered Property
(1)
Stabilized Aqueous Polymer Compositions and Their Use
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 23, 2009
From: ENGELHARDT, FRIEDRICH; SPIELMANN, WERNER; BREMAR, CHRISIAN; OBERMULLER, AMJA
To: ALLESSA CHEMIE GMBH
Reel/Frame 023416/0218 →
Change of Name
Apr 4, 2013
From: ALLESSACHEMIE GMBH
To: ALLESSA GMBH
Reel/Frame 030149/0490 →
Assignment of Assignor's Interest
Dec 14, 2025
From: TOUGAS OILFIELD SOLUTIONS GMBH
To: TOUGAS HOLDING GMBH
Reel/Frame 073210/0029 →