BF

Bjorn Frannhagen

Ericsson: 6 patents #1,997 of 9,909Top 25%
Overall (All Time): #884,614 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6049144 Rechargeable battery with a built-in safety circuit for a portable electric apparatus Timothy Banyas 2000-04-11
6025694 Battery pack for a portable electric apparatus and a method for the charging thereof Johan Mercke 2000-02-15
5990659 Battery pack that communicates intrinsic information over battery voltage terminals 1999-11-23
5945804 Method and device for controlling the voltage across individual cells in a battery Magnus Hansson 1999-08-31
5834921 Safety device for a portable battery-powered electric apparatus Johan Mercke 1998-11-10
5818204 Battery charging methods and apparatuses Timothy Banyas 1998-10-06