Inventor
SOPOROWSKI ANDRZEJ L
US8 patents
Patents
8 patentsUS4987690AJan 29, 1991
Convertible swing arm and desk top copy holder
ESSELTE PENDAFLEX CORP62 citations95
US4698928AOct 13, 1987
Sign holder
ESSELTE PENDAFLEX CORP61 citations94
USD298265SOct 25, 1988
Hanging pocket folder
ESSELTE PENDAFLEX CORP30 citations90
US4576328AMar 18, 1986
Hanging partition folder
ESSELTE PENDAFLEX CORP30 citations89
USD314399SFeb 5, 1991
Bookends
ESSELTE PENDAFLEX CORP17 citations81
USD297688SSep 20, 1988
Stackable drawer file
ESSELTE PENDAFLEX CORP20 citations81
US4728159AMar 1, 1988
Stackable file storage unit
ESSELTE PENDAFLEX CORP14 citations73
USD338238SAug 10, 1993
Portable file box
ESSELTE PENDAFLEX CORP9 citations72