Patent Assignment
Reel/Frame 056571/0386
Assignment of Assignor's Interest
Recorded: 2021-06-17
Pages: 6
Assignors
CHEN, NAN
Executed: 2018-09-16
BERTOLDI, FEDERICO
Executed: 2018-11-02
ILVES, KALLE
Executed: 2018-09-13
POSTIGLIONE, CICERO DA SILVEIRA
Executed: 2018-09-13
Assignee
ABB SCHWEIZ AG
BROWN BOVERI STRASSE 6, BADEN, 5400, SWITZERLAND
Covered Property
(1)
Voltage Source Converter Generating a Pulse Train Using Two Voltage Levels
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 17, 2021
From: ABB SCHWEIZ AG
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 057633/0354 →
Change of Name
Dec 31, 2021
From: ABB POWER GRIDS SWITZERLAND AG
To: HITACHI ENERGY SWITZERLAND AG
Reel/Frame 058601/0692 →
Merger
Nov 13, 2023
From: HITACHI ENERGY SWITZERLAND AG
To: HITACHI ENERGY LTD
Reel/Frame 065548/0905 →