IP Library › Assignment 074684/0397
Patent Assignment
Reel/Frame 074684/0397

Merger

Recorded: 2026-05-18 Pages: 9
Assignor
SASOL CHEMICALS GMBH
Executed: 2023-09-29
Assignee
SASOL CHEMIE GMBH & CO. KG
ANCKELMANNSPLATZ 1, HAMBURG, 20537, GERMANY
Covered Properties (2)
Alkyl Alkoxylated Carboxylate Salts as Steam Foam Additives for Heavy Oil Recovery
Application: 16/981,536 →
Publication: US 2021/0253940
Injection Fluids Comprising Anionic Surfactants and Alkoxylated Alcohols and the Use of Such Fluids in Chemical Enhanced Oil Recovery Processes
Application: 17/607,618 →
Publication: US 2022/0204835
Related Assignments (3)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 28, 2021
From: NGUYEN, THU; ROMMERSKIRCHEN, RENKE; FERNANDEZ, JORGE
To: SASOL PERFORMANCE CHEMICALS GMBH
Reel/Frame 055062/0794 →
Assignment of Assignor's Interest Feb 23, 2022
From: NGUYEN, THU; MORGAN, CARLA A; FERNANDEZ, JORGE
To: SASOL CHEMICALS GMBH
Reel/Frame 059077/0852 →
Change of Name Oct 12, 2022
From: SASOL PERFORMANCE CHEMICALS GMBH
To: SASOL CHEMICALS GMBH
Reel/Frame 061658/0115 →