Inventor
KLEIN DAVID N
US18 patents
⚠️ This page may combine multiple inventors who share the name “KLEIN DAVID N”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GILLETTE CO
10 patentsUS8378632B2Feb 19, 2013
Circuit arrangement with multiple batteries
GILLETTE CO27 citations92
US7038333B2May 2, 2006
Hybrid power supply
GILLETTE CO30 citations92
US6291096B1Sep 18, 2001
Pass/fail battery indicator and tester
GILLETTE CO19 citations92
US8373387B2Feb 12, 2013
USB inductive charger
GILLETTE CO34 citations89
US6232782B1May 15, 2001
On cell circumferential battery indicator
GILLETTE CO34 citations89
US8018204B2Sep 13, 2011
Compact ultra fast battery charger
GILLETTE CO11 citations83
US7932634B2Apr 26, 2011
Fuel cell hybrid power supply
GILLETTE CO10 citations83
US7482091B2Jan 27, 2009
Fuel cartridge interconnect for portable fuel cells
GILLETTE CO7 citations73
US7646174B2Jan 12, 2010
Battery low-voltage cutoff circuit
GILLETTE CO2 citations57
US7862926B2Jan 4, 2011
Fuel cartridge interconnect for portable fuel cells
GILLETTE CO0 citations51
DURACELL US OPERATIONS INC
5 patentsUSD878295SMar 17, 2020
Battery tab
DURACELL US OPERATIONS INC4 citations83
USD900744SNov 3, 2020
Battery tab
DURACELL US OPERATIONS INC2 citations72
US11621451B2Apr 4, 2023
Removable tab and battery assembly having the same
DURACELL US OPERATIONS INC0 citations60
US11101514B2Aug 24, 2021
Removable tab and battery assembly having the same
DURACELL US OPERATIONS INC0 citations60
USD900028SOct 27, 2020
Battery tab
DURACELL US OPERATIONS INC0 citations51