Patent Assignment
Reel/Frame 043821/0756
Assignment of Assignor's Interest
Recorded: 2017-10-10
Pages: 4
Assignor
SIEFKER, BRYAN
Executed: 2017-08-29
Assignee
ABB SCHWEIZ AG
BROWN BOVERI STRASSE 6, BADEN, 5400, SWITZERLAND
Covered Property
(1)
Transformer Systems and Methods for Operating a Transformer System
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 22, 2020
From: ABB SCHWEIZ AG
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 051719/0657 →
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 →