Granted Patent
Utility
US 6,507,171 · App. 10/029,744
Method and apparatus for measuring battery charge and discharge current using a direct analog-to-digital conversion of a charge/discharge replica current
Inventors:
Antti Ruha, Tarmo Ruotsalainen, Jussi-Pekka Tervaluoto, Jani Kauppinen
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Dec 21, 2001
Inventors
Antti Ruha
Tarmo Ruotsalainen
Jussi-Pekka Tervaluoto
Jani Kauppinen
Assignee (at issue)
Nokia
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.