Patent Assignment
Reel/Frame 042989/0994
Merger
Recorded: 2017-07-12
Pages: 6
Assignor
ABB TECHNOLOGY LTD
Executed: 2016-06-23
Assignee
ABB SCHWEIZ AG
BROWN BOVERI STRASSE 6, BADEN, 5400, SWEDEN
Covered Property
(1)
Interface Arrangement Between an Alternating Current Power System and a Direct Current Power System with Control of Converter Valve for Fault Protection
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 12, 2017
From: SUBRAMANIAN, SASITHARAN
To: ABB TECHNOLOGY LTD
Reel/Frame 042989/0984 →
Assignment of Assignor's Interest
Mar 6, 2020
From: ABB SCHWEIZ AG
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 052916/0001 →
Change of Name
Dec 31, 2021
From: ABB POWER GRIDS SWITZERLAND AG
To: HITACHI ENERGY SWITZERLAND AG
Reel/Frame 058666/0540 →
Merger
Nov 13, 2023
From: HITACHI ENERGY SWITZERLAND AG
To: HITACHI ENERGY LTD
Reel/Frame 065548/0905 →