IP Library › Assignment 031040/0187
Patent Assignment
Reel/Frame 031040/0187

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
Patent: 7,842,741 →
Application: 12/321,552 →
Publication: US 2009/0192055
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Apr 22, 2009
From: ENGELHARDT, FRIEDRICH; BREMER, CHRISTIAN; OBERMULLER, ANJA; CHRISTIAN, JOACHIM
To: ALLESSA CHEMIE GMBH
Reel/Frame 022581/0666 →
Change of Name Apr 10, 2013
From: ALLESSACHEMIE GMBH
To: ALLESSA GMBH
Reel/Frame 030183/0522 →
Assignment of Assignor's Interest Dec 14, 2025
From: TOUGAS OILFIELD SOLUTIONS GMBH
To: TOUGAS HOLDING GMBH
Reel/Frame 073210/0029 →