Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Charging system having electromagnetic field means for distinguishing between primary and secondary batteries

Charging system having electromagnetic field means for distinguishing between primary and secondary batteries

US Patent 4577145 · Granted Mar 18, 1986

Estimated economic value: $9,106,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Circuit for supplying energy from a battery to an energy-using device1987
Battery charger for plural cell holding modules1987
Battery charging system having means for distinguishing between primary and seco1986
Battery charging system including means for distinguishing between rechargeable 1986
System and circuit for charging a rechargeable battery1984
Battery charger with visual charge indicating means1984
Controlled fast charger1984
Indicator of full charge for secondary cell or battery thereof1983
Battery charger with indicator for indicating full charge of secondary cells or 1983
Timed fast charger1981
Battery charger adapter system1980
Battery charger adapter1980