Patent Assignment
Reel/Frame 038210/0661
Assignment of Assignor's Interest
Recorded: 2016-04-06
Pages: 9
Assignors
WANG, ZHAO
Executed: 2016-03-16
CHEN, YAO
Executed: 2016-03-15
SAERS, ROBERT
Executed: 2016-03-15
YANG, XIAOXIA
Executed: 2016-03-17
YU, RONGRONG
Executed: 2016-03-16
Assignee
ABB TECHNOLOGY LTD.
AFFOLTERNSTRASSE 44, ZURICH, 8050, SWITZERLAND
Covered Property
(1)
Method to Optimize Operation of a Transformer Cooling System, the Corresponding System and a Method to Determine the Vfd Capacity
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Aug 11, 2016
From: ABB TECHNOLOGY LTD.
To: ABB SCHWEIZ AG
Reel/Frame 039652/0857 →
Merger
Nov 15, 2016
From: ABB TECHNOLOGY LTD.
To: ABB SCHWEIZ AG
Reel/Frame 040621/0687 →
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 →