Inventor
FRIEL DANIEL D
US34 patents
⚠️ This page may combine multiple inventors who share the name “FRIEL DANIEL D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EDGECRAFT CORP
16 patentsUS5611726AMar 18, 1997
High speed precision sharpening apparatus
EDGECRAFT CORP101 citations98
USD409891SMay 18, 1999
Sharpener
EDGECRAFT CORP66 citations96
US5582535ADec 10, 1996
Method and apparatus for knife and blade sharpening
EDGECRAFT CORP65 citations96
US5449315ASep 12, 1995
Portable manual sharpener for knives and the like
EDGECRAFT CORP50 citations96
US5404679AApr 11, 1995
Portable manual sharpener for knives and the like
EDGECRAFT CORP58 citations96
US5390431AFeb 21, 1995
Method and apparatus for knife and blade sharpening
EDGECRAFT CORP76 citations96
US5148634ASep 22, 1992
Scissor sharpening apparatus with magnetic guide
EDGECRAFT CORP60 citations96
USD328410SAug 4, 1992
Knife sharpener
EDGECRAFT CORP55 citations96
US5005319AApr 9, 1991
Knife sharpener
EDGECRAFT CORP74 citations96
USD303209SSep 5, 1989
Knife sharpener
EDGECRAFT CORP56 citations96
US4807399AFeb 28, 1989
Method and apparatus for sharpening a knife
EDGECRAFT CORP100 citations96
US5245791ASep 21, 1993
Scissor sharpening apparatus
EDGECRAFT CORP63 citations94
US5868611AFeb 9, 1999
Versatile manual sharpener
EDGECRAFT CORP34 citations93
USD368217SMar 26, 1996
Knife sharpener
EDGECRAFT CORP34 citations93
USD357395SApr 18, 1995
Knife sharpener
EDGECRAFT CORP41 citations93
USD342003SDec 7, 1993
Portable manual knife sharpener
EDGECRAFT CORP27 citations92
DURACELL INC
6 patentsUS5606242AFeb 25, 1997
Smart battery algorithm for reporting battery parameters to an external device
DURACELL INC788 citations99
US5710501AJan 20, 1998
Battery pack having a processor controlled battery operating system
DURACELL INC96 citations98
US5652502AJul 29, 1997
Battery pack having a processor controlled battery operating system
DURACELL INC185 citations98
US5646508AJul 8, 1997
Battery pack having a processor controlled battery operating system
DURACELL INC105 citations98
US5633573AMay 27, 1997
Battery pack having a processor controlled battery operating system
DURACELL INC251 citations98
US5691621ANov 25, 1997
Battery pack having a processor controlled battery operating system
DURACELL INC116 citations97
FRIEL DANIEL D
4 patentsUSD310620SSep 18, 1990
Knife sharpener
FRIEL DANIEL D53 citations96
US4716689AJan 5, 1988
Methods and apparatus for knife and blade sharpening
FRIEL DANIEL D85 citations96
US4627194ADec 9, 1986
Method and apparatus for knife and blade sharpening
FRIEL DANIEL D90 citations96
US4897965AFeb 6, 1990
Knife sharpening apparatus
FRIEL DANIEL D49 citations92
(unassigned)
3 patentsUS5796239AAug 18, 1998
Battery pack having a processor controlled battery operating system
289 citations98
US5789899AAug 4, 1998
Smart battery system with an A/D converter that converts both positive and negative analog input signals
222 citations97
US6025695AFeb 15, 2000
Battery operating system
311 citations94