Granted Patent
Utility
US 6,798,173 · App. 09/790,731
Automatic charging device via a universal serial bus and method of operating the same
Inventor:
Ying-Hao Hsu
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Feb 21, 2001
Inventor
Ying-Hao Hsu
Assignee (at issue)
BenQ Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.