Patent Assignment
Reel/Frame 045595/0551
Assignment of Assignor's Interest
Recorded: 2018-04-20
Pages: 5
Assignee
UNIVERSITY OF HELSINKI
YLIOPISTONKATU 4, HELSINKI, 00100, FINLAND
Covered Property
(1)
Surfactant composition and method for treating bitumen froth
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 20, 2018
From: KYLLÖNEN, LASSE; AUJLA, SUKHJIT; FOURNIER, FRANCES; FENDERSON, TOM
To: KEMIRA OYJ
Reel/Frame 045595/0536 →
Assignment of Assignor's Interest
Apr 20, 2018
From: UNIVERSITY OF HELSINKI
To: KEMIRA OYJ
Reel/Frame 045595/0573 →
Assignment of Assignor's Interest
Feb 27, 2024
From: KEMIRA OYJ
To: STERLING SPECIALTY CHEMICALS HOLDING UK LIMITED
Reel/Frame 066699/0200 →