Patent Assignment
Reel/Frame 056172/0126
Assignment of Assignor's Interest
Recorded: 2021-05-07
Pages: 3
Assignor
ABEYWICKRAMA, NILANGA
Executed: 2019-10-07
Assignee
ABB SCHWEIZ AG
BROWN BOVERI STRASSE 6, BADEN, 5400, SWITZERLAND
Covered Property
(1)
Relative Bushing Parameter Method to Avoid Temperature Influence in Transformer Absolute Bushing Parameter Monitoring
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 7, 2021
From: ABB SCHWEIZ AG
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 056172/0351 →
Change of Name
Dec 31, 2021
From: ABB POWER GRIDS SWITZERLAND AG
To: HITACHI ENERGY SWITZERLAND AG
Reel/Frame 058601/0692 →
Merger
Oct 17, 2023
From: HITACHI ENERGY SWITZERLAND AG
To: HITACHI ENERGY LTD
Reel/Frame 065245/0532 →