Assignee
PORELON
US·19 granted patents·374 citations·filing 1974–1992
Top patents by PatentIndex Score
19 records- 0187US3971315AMacroporous microporous marking structurePORELON·Filed 1974·Granted Jul 27, 1976·43 cites·16 claims
- 0285US5344483AHigh-density, low-viscosity ink for use in ink jet printersPORELON·Filed 1992·Granted Sep 6, 1994·63 cites·20 claims
- 0382US4676162ARubber stampPORELON·Filed 1985·Granted Jun 30, 1987·57 cites·7 claims
- 0481US4091914AWear-activated ribbon reinkerPORELON·Filed 1977·Granted May 30, 1978·39 cites·35 claims
- 0575USD323527SSelf-inking hand stampPORELON·Filed 1990·Granted Jan 28, 1992·20 cites·1 claims
- 0666US5049432AMethod for preparing a marking structurePORELON·Filed 1990·Granted Sep 17, 1991·35 cites·12 claims
- 0765US5105738AArticulated hand stampPORELON·Filed 1990·Granted Apr 21, 1992·24 cites·14 claims
- 0862US4927695AMicroporous marking structuresPORELON·Filed 1989·Granted May 22, 1990·22 cites·29 claims
- 0961US4913050ASelf-metering gravity fed ink dispensing rollerPORELON·Filed 1988·Granted Apr 3, 1990·13 cites·13 claims
- 1058USD326276SHand stampPORELON·Filed 1989·Granted May 19, 1992·7 cites·1 claims
- 1146USD293921SHand stamp mountPORELON·Filed 1985·Granted Jan 26, 1988·4 cites·1 claims
- 1245US5277721AMethod for making microporous marking structuresPORELON·Filed 1992·Granted Jan 11, 1994·13 cites·20 claims
- 1344USD322984SHand stampPORELON·Filed 1989·Granted Jan 7, 1992·3 cites·1 claims
- 1440US5292565AInk roll for high speed printingPORELON·Filed 1991·Granted Mar 8, 1994·14 cites·13 claims
- 1536USD324396SHand stampPORELON·Filed 1989·Granted Mar 3, 1992·2 cites·1 claims
- 1630US4824621AMethod for making an ink-impregnated materialPORELON·Filed 1988·Granted Apr 25, 1989·4 cites·14 claims
- 1730US4768437AHigh contrast printing materialPORELON·Filed 1987·Granted Sep 6, 1988·4 cites·20 claims
- 1826US5099997APackage for dispensing a fluid containing an inkPORELON·Filed 1989·Granted Mar 31, 1992·6 cites·11 claims
- 1924US4884505AMethod and apparatus for printing a light scannable imagePORELON·Filed 1988·Granted Dec 5, 1989·1 cites·12 claims
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