IP Library › Assignment 025668/0920
Patent Assignment
Reel/Frame 025668/0920

Assignment of Assignor's Interest

Recorded: 2011-01-20 Pages: 3
Assignor
KIRRMANN, HUBERT
Executed: 2011-01-18
Assignee
ABB RESEARCH LTD
AFFOLTERNSTRASSE 44, ZURICH, CH-8050, SWITZERLAND
Covered Property (1)
Ring Coupling Nodes for High Availability Networks
Patent: 8,582,424 →
Application: 13/010,216 →
Publication: US 2011/0116508
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Dec 26, 2019
From: ABB RESEARCH LTD.
To: ABB SCHWEIZ AG
Reel/Frame 051419/0309 →
Assignment of Assignor's Interest Mar 15, 2021
From: ABB SCHWEIZ AG
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 055589/0769 →
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 →