Patent Assignment
Reel/Frame 064339/0374
Assignment of Assignor's Interest
Recorded: 2023-07-21
Pages: 3
Assignors
VASILEV, BORISLAV
Executed: 2021-07-07
MANEV, GEORGI
Executed: 2021-07-08
NIKOLOV, VESELIN
Executed: 2021-07-07
MIHAYLOV, ANGEL
Executed: 2021-07-07
Assignee
ABB POWER GRIDS 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.
Change of Name
Jul 21, 2023
From: ABB POWER GRIDS SWITZERLAND AG
To: HITACHI ENERGY SWITZERLAND AG
Reel/Frame 064339/0422 →
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 →