Patent Assignment
Reel/Frame 029051/0219
Assignment of Assignor's Interest
Recorded: 2012-09-28
Pages: 7
Assignors
NORRGA, STAFFAN
Executed: 2012-09-21
JONSSON, TOMAS U.
Executed: 2012-09-20
SHUKLA, ANSHUMAN
Executed: 2012-09-21
Assignee
ABB RESEARCH LTD
AFFOLTERNSTRASSE 44, ZURICH, 8050, SWITZERLAND
Covered Property
(1)
Ac/Dc Converter Station Operated in Dependence of Voltage of Capacitor Connected in Series Between Ac/Dc Converter and Ac Network Interface and a Method of Operating the Same
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Dec 26, 2019
From: ABB RESEARCH LTD.
To: ABB SCHWEIZ AG
Reel/Frame 051419/0309 →
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 065549/0576 →