Assignee
PORELON
US19 patents
Top patents by PatentIndex Score
US5105738AApr 21, 1992
Articulated hand stamp
PORELON24 citations92
US5344483ASep 6, 1994
High-density, low-viscosity ink for use in ink jet printers
PORELON63 citations91
US3971315AJul 27, 1976
Macroporous microporous marking structure
PORELON43 citations91
US4676162AJun 30, 1987
Rubber stamp
PORELON57 citations88
US5049432ASep 17, 1991
Method for preparing a marking structure
PORELON35 citations87
US4091914AMay 30, 1978
Wear-activated ribbon reinker
PORELON39 citations81
USD323527SJan 28, 1992
Self-inking hand stamp
PORELON20 citations78
US4927695AMay 22, 1990
Microporous marking structures
PORELON22 citations76
USD326276SMay 19, 1992
Hand stamp
PORELON7 citations73
US5277721AJan 11, 1994
Method for making microporous marking structures
PORELON13 citations70
US4913050AApr 3, 1990
Self-metering gravity fed ink dispensing roller
PORELON13 citations63
USD293921SJan 26, 1988
Hand stamp mount
PORELON4 citations63
US5292565AMar 8, 1994
Ink roll for high speed printing
PORELON14 citations62
USD322984SJan 7, 1992
Hand stamp
PORELON3 citations62
USD324396SMar 3, 1992
Hand stamp
PORELON2 citations59
US4824621AApr 25, 1989
Method for making an ink-impregnated material
PORELON4 citations55
US4768437ASep 6, 1988
High contrast printing material
PORELON4 citations55
US5099997AMar 31, 1992
Package for dispensing a fluid containing an ink
PORELON6 citations51
US4884505ADec 5, 1989
Method and apparatus for printing a light scannable image
PORELON1 citations44