IP Library › Assignment 027981/0375
Patent Assignment
Reel/Frame 027981/0375

Assignment of Assignor's Interest

Recorded: 2012-04-03 Pages: 8
Assignors
BERGGREN, BERTIL
Executed: 2012-02-17
NORRGA, STAFFAN
Executed: 2012-03-13
JONSSON, TOMAS U.
Executed: 2012-02-24
Assignee
ABB RESEARCH LTD.
AFFOLTERNSTRASSE 44, ZURICH, CH-8050, SWITZERLAND
Covered Property (1)
Fault Current Limitation in Dc Power Transmission Systems
Patent: 8,830,708 →
Application: 13/395,359 →
Publication: US 2012/0201059
Related Assignments (2)
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 6, 2020
From: ABB SCHWEIZ AG
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 052916/0001 →