Patent Assignment
Reel/Frame 056172/0351
Assignment of Assignor's Interest
Recorded: 2021-05-07
Pages: 6
Assignor
ABB SCHWEIZ AG
Executed: 2019-10-25
Assignee
ABB POWER GRIDS SWITZERLAND AG
BRUGGERSTRASSE 72, 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: ABEYWICKRAMA, NILANGA
To: ABB SCHWEIZ AG
Reel/Frame 056172/0126 →
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 →