Granted Patent
Utility
US 6,777,914 · App. 10/278,185
Method for determining the state of charge of rechargeable batteries by integration of the amounts of current flowing during charging and discharging
Inventors:
Matthias Ullrich, Hans-Walter Folge, Claus Schmitz
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Oct 21, 2002
Inventors
Matthias Ullrich
Hans-Walter Folge
Claus Schmitz
Assignee (at issue)
Varta Automotive Systems GmbH
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.