Patent Assignment
Reel/Frame 052567/0879
Confirmation of Ip Ownership
Recorded: 2020-05-05
Pages: 23
Assignor
ABB PATENT GMBH
Executed: 2019-03-31
Assignee
ABB SCHWEIZ AG
BRUGGERSTRASSE 66, BADEN, 5400, SWITZERLAND
Covered Properties
(2)
High-Voltage Switching Device Having at Least Two Series-Connected Vacuum Witching Chambers, and a Method for Operation of the High-Voltage Switching Device
Patent:
6,498,315 →
Application:
09/528,423 →
Method and System for Systematic Evaluation of Evaluation Parameters of Technical Operational Equipment
Related Assignments
(3)
Other recorded transfers of the patents in this record — the chain of ownership.
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 →