Patent Assignment
Reel/Frame 029139/0064
Assignment of Assignor's Interest
Recorded: 2012-10-16
Pages: 7
Assignors
HARNEFORS, LENNART
Executed: 2012-09-26
NORRGA, STAFFAN
Executed: 2012-09-21
SHUKLA, ANSHUMAN
Executed: 2012-09-21
Assignee
ABB RESEARCH LTD.
AFFOLTERNSTRASSE 44, ZURICH, 8050, SWITZERLAND
Covered Property
(1)
Modular Multi-Level Power Converter with Second and Third Order Harmonics Reduction Filter
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 →