IP Library Assignment 041695/0208
Patent Assignment
Reel/Frame 041695/0208

Assignment of Assignor's Interest

Recorded: 2017-02-13 Pages: 3
Assignors
TOWNSEND, CHRISTOPHER
Executed: 2014-09-22
ZELAYA DE LA PARRA, HECTOR
Executed: 2014-09-18
Assignee
ABB TECHNOLOGY LTD
AFFOLTERNSTRASSE 44, ZÜRICH, SWITZERLAND
Covered Property (1)
Method of Controlling the Switching of a Multilevel Converter, a Controller for a Multilevel Converter, and a Computer Program for Controlling a Converter
Patent: 9,923,446 →
Application: 15/503,129 →
Publication: US 2017/0237331
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Feb 13, 2017
From: ABB TECHNOLOGY LTD
To: ABB SCHWEIZ AG
Reel/Frame 041239/0916 →
Assignment of Assignor's Interest Mar 6, 2020
From: ABB SCHWEIZ AG
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 052916/0001 →