Patent Assignment
Reel/Frame 057633/0354
Assignment of Assignor's Interest
Recorded: 2021-06-17
Pages: 7
Assignor
ABB SCHWEIZ AG
Executed: 2019-10-25
Assignee
ABB POWER GRIDS SWITZERLAND AG
BRUGGERSTRASSE 72, 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: CHEN, NAN; BERTOLDI, FEDERICO; ILVES, KALLE; POSTIGLIONE, CICERO DA SILVEIRA
To: ABB SCHWEIZ AG
Reel/Frame 056571/0386 →
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 →