Patent Assignment
Reel/Frame 055166/0850
Assignment of Assignor's Interest
Recorded: 2021-02-05
Pages: 4
Assignor
FERNANDES, JONAS ALVES
Executed: 2017-02-28
Assignee
BRASKEM AMERICA, INC.
1735 MARKET STREET, 28TH FLOOR, PHILADELPHIA, PENNSYLVANIA, 19103
Covered Property
(1)
Electron Donors for Ziegler-Natta Precatalyst Preparation and Catalyst System for Olefin Polymerization
PCT:
PCT/US2017/020880 ↗
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Sep 6, 2019
From: BRASKEM SA
To: BRASKEM AMERICA, INC.
Reel/Frame 050295/0371 →
Assignment of Assignor's Interest
Sep 6, 2019
From: BRASKEM EUROPE GMBH
To: BRASKEM AMERICA, INC.
Reel/Frame 050295/0922 →
Joint Ownership Acknowledgement
Jan 22, 2020
From: W. R. GRACE & CO.-CONN.
To: BRASKEM AMERICA, INC.; BRASKEM SA; BRASKEM EUROPE GMBH
Reel/Frame 051668/0476 →
Assignment of Assignor's Interest
Feb 5, 2021
From: NGUYEN, BINH THANH; XI, ZHENXING
To: W.R. GRACE & CO.-CONN.
Reel/Frame 055167/0104 →
Assignment of Assignor's Interest
Mar 26, 2026
From: W.R. GRACE & CO.- CONN.
To: BRASKEM AMERICA, INC.
Reel/Frame 074192/0694 →