Patent Assignment
Reel/Frame 064339/0422
Change of Name
Recorded: 2023-07-21
Pages: 6
Assignor
ABB POWER GRIDS SWITZERLAND AG
Executed: 2019-04-29
Assignee
HITACHI ENERGY SWITZERLAND AG
BRUGGERSTRASSE 72, BADEN, 5400, SWITZERLAND
Covered Property
(1)
Driving System for an on-Load Tap Changer
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 21, 2023
From: VASILEV, BORISLAV; MANEV, GEORGI; NIKOLOV, VESELIN; MIHAYLOV, ANGEL
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 064339/0374 →
Merger
Nov 13, 2023
From: HITACHI ENERGY SWITZERLAND AG
To: HITACHI ENERGY LTD
Reel/Frame 065548/0869 →
Merger
Jul 17, 2025
From: HITACHI ENERGY SWITZERLAND AG
To: HITACHI ENERGY LTD
Reel/Frame 072018/0053 →