Patent Assignment
Reel/Frame 073210/0029
Assignment of Assignor's Interest
Recorded: 2025-12-14
Pages: 5
Assignor
TOUGAS OILFIELD SOLUTIONS GMBH
Executed: 2025-09-28
Assignee
TOUGAS HOLDING GMBH
WEISSMULLERSTRASSE 50, FRANKFURT, 60314, GERMANY
Covered Properties
(11)
Method for Manufacturing of Stable Inverse Polymer Emulsion and Use Thereof
Application:
17/352,893 →
Publication:
US 2022/0144991
Inverse Polymer Emulsion with Specific Emulsifier Package for Polymer Flooding
Application:
18/976,385 →
Publication:
US 2025/0101292
Manufacturing Method for Inverse Emulsion Polymer
Application:
17/429,149 →
Publication:
US 2022/0081495
Stabilized Aqueous Polymer Compositions
Stabilized Aqueous Polymer Compositions and Their Use
Temperature-Stable, Electrolytic Hydrogel and Method for Stimulating Crude Oil and Natural Gas Deposits
Method to Reduce the Water Loss in Slurries or Solutions Used in Oil Field and Gas Field Operations
Method for Reducing the Viscosity of Viscosified Fluids for Applications in Natural Gas and Oil Fields
Method for Reducing the Viscosity of Viscosified Fluids for Applications in Natural Gas and Oil Fields
A Method to Produce a Scale Inhibitor
Inverse Polymer Emulsion with Specific Emulsifier Package for Polymer Flooding
Related Assignments
(15)
Other recorded transfers of the patents 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 →
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 →
Change of Name
Apr 10, 2013
From: ALLESSACHEMIE GMBH
To: ALLESSA GMBH
Reel/Frame 030183/0522 →
Assignment of Assignor's Interest
Aug 6, 2013
From: ALLESSA GMBH
To: TOUGAS OILFIELD SOLUTIONS GMBH
Reel/Frame 031040/0184 →
Assignment of Assignor's Interest
Aug 6, 2013
From: ALLESSA GMBH
To: TOUGAS OILFIELD SOLUTIONS GMBH
Reel/Frame 031040/0187 →
Assignment of Assignor's Interest
Nov 13, 2015
From: DUGONJIC-BILIC, FATIMA; USENER, CAROLIN; NEUBER, MARITA; PFAHLS, MARGARETHE
To: TOUGAS OILFIELD SOLUTIONS GMBH
Reel/Frame 037033/0844 →
Assignment of Assignor's Interest
Dec 28, 2016
From: DUGONJIC-BILIC, FATIMA; MEURER; NÉE BÜHLER, JASMIN; NEUBER, MARITA
To: TOUGAS OILFIELD SOLUTIONS GMBH
Reel/Frame 040784/0396 →
Assignment of Assignor's Interest
Aug 7, 2018
From: DUGONJIC-BILIC, FATIMA; MEURER, JASMIN; NEUBER, MARITA
To: TOUGAS OILFIELD SOLUTIONS GMBH
Reel/Frame 046571/0988 →
Assignment of Assignor's Interest
Aug 7, 2018
From: DUGONJIC-BILIC, FATIMA; MEURER, JASMIN; NEUBER, MARITA
To: TOUGAS OILFIELD SOLUTIONS GMBH
Reel/Frame 046568/0196 →
Assignment of Assignor's Interest
Dec 19, 2019
From: DUGONJIC-BILIC, FATIMA; GERLACH, BENJAMIN; MEURER, JASMIN; NEUBER, MARITA
To: TOUGAS OILFIELD SOLUTIONS GMBH
Reel/Frame 051328/0916 →
Assignment of Assignor's Interest
Aug 6, 2021
From: DUGONJIC-BILIC, FATIMA; NEUBER, MARITA
To: TOUGAS OILFIELD SOLUTIONS GMBH
Reel/Frame 057105/0306 →
Assignment of Assignor's Interest
Aug 13, 2021
From: DUGONJIC-BILIC, FATIMA; GERLACH, BENJAMIN; NEUBER, MARITA
To: TOUGAS OILFIELD SOLUTIONS GMBH
Reel/Frame 057174/0672 →
Assignment of Assignor's Interest
Aug 13, 2021
From: DUGONJIC-BILIC, FATIMA; NEUBER, MARITA
To: TOUGAS OILFIELD SOLUTIONS GMBH
Reel/Frame 057170/0066 →
Assignment of Assignor's Interest
Dec 15, 2025
From: DUGONJIC-BILIC, FATIMA; GERLACH, BENJAMIN; NEUBER, MARITA
To: TOUGAS OILFIELD SOLUTIONS GMBH
Reel/Frame 073212/0029 →