IP Library Assignment 061658/0115
Patent Assignment
Reel/Frame 061658/0115

Change of Name

Recorded: 2022-10-12 Pages: 24
Assignor
SASOL PERFORMANCE CHEMICALS GMBH
Executed: 2020-12-14
Assignee
SASOL CHEMICALS GMBH
ANCKELMANNSPLATZ 1, HAMBURG, 20537, GERMANY
Covered Property (1)
Alkyl Alkoxylated Carboxylate Salts as Steam Foam Additives for Heavy Oil Recovery
Application: 16/981,536 →
Publication: US 2021/0253940
Related Assignments (2)
Other recorded transfers of the patent 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 →
Merger May 18, 2026
From: SASOL CHEMICALS GMBH
To: SASOL CHEMIE GMBH & CO. KG
Reel/Frame 074684/0397 →