Patent Assignment
Reel/Frame 013912/0959
Assignment of Assignor's Interest
Recorded: 2003-03-26
Pages: 3
Assignors
SPIESS, HERMANN
Executed: 2003-03-06
STRITTMATTER, MICHAEL
Executed: 2003-03-06
KRANICH, MATHIAS
Executed: 2003-03-06
Assignee
ABB SCHWEIZ AG
BROWN BOVERI STRASSE 6, CH-5400 BADEN, SWITZERLAND
Covered Property
(1)
Redundant Transmission of Protection Commands Between Remote Tripping Devices
Related Assignments
(3)
Other recorded transfers of the patent 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 →