IP Library › Assignment 034903/0892
Patent Assignment
Reel/Frame 034903/0892

Assignment of Assignor's Interest

Recorded: 2015-02-06 Pages: 3
Assignors
LI, YOUYI
Executed: 2014-11-20
LIU, KAI
Executed: 2014-12-11
SU, BIN
Executed: 2014-12-17
Assignee
ABB TECHNOLOGY LTD.
AFFOLTERNSTRASSE 44, ZURICH, CH-8050, SWITZERLAND
Covered Property (1)
Method for Identifying the Fault by Current Differential Protection and Device Thereof
Application: 14/405,292 →
Publication: US 2015/0160297
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Aug 30, 2016
From: ABB TECHNOLOGY LTD.
To: ABB SCHWEIZ AG
Reel/Frame 039883/0931 →
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 →