IP Library Assignment 055062/0794
Patent Assignment
Reel/Frame 055062/0794

Assignment of Assignor's Interest

Recorded: 2021-01-28 Pages: 4
Assignors
NGUYEN, THU
Executed: 2020-10-20
ROMMERSKIRCHEN, RENKE
Executed: 2020-10-19
FERNANDEZ, JORGE
Executed: 2020-11-03
Assignee
SASOL PERFORMANCE 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.
Change of Name Oct 12, 2022
From: SASOL PERFORMANCE CHEMICALS GMBH
To: SASOL CHEMICALS GMBH
Reel/Frame 061658/0115 →
Merger May 18, 2026
From: SASOL CHEMICALS GMBH
To: SASOL CHEMIE GMBH & CO. KG
Reel/Frame 074684/0397 →