Assignee
NITROJECTION CORP
US15 patents
Top patents by PatentIndex Score
US5151278ASep 29, 1992
Plastic injection molding nozzle with gas assist
NITROJECTION CORP46 citations94
US5198238AMar 30, 1993
Apparatus having an in-the-mold gas injection pin
NITROJECTION CORP42 citations92
US5198240AMar 30, 1993
Pressurization control unit for a gas-assisted injection molding machine
NITROJECTION CORP32 citations92
US5112563AMay 12, 1992
Process of injection molding with pressurized gas assist
NITROJECTION CORP31 citations92
US5164200ANov 17, 1992
Nozzle for gas assisted injection molding
NITROJECTION CORP31 citations89
US5080570AJan 14, 1992
Miniaturized for gas-assisted injection molding
NITROJECTION CORP27 citations89
US5127814AJul 7, 1992
Apparatus for producing a fluid-assisted injection molded product
NITROJECTION CORP61 citations87
US6221306B1Apr 24, 2001
Pin-in-sleeve device for in-article gas assisted injection molding
NITROJECTION CORP16 citations83
US5096655AMar 17, 1992
Method for injection molding
NITROJECTION CORP16 citations81
US5256047AOct 26, 1993
Gas assisted injection molding apparatus utilizing sleeve and pin arrangement
NITROJECTION CORP18 citations76
US5302339AApr 12, 1994
Method for gas assisted injection molding with pin and sleeve mechanism
NITROJECTION CORP10 citations71
US5174932ADec 29, 1992
Process for gas assisted injection molding
NITROJECTION CORP10 citations68
US5049056ASep 17, 1991
Gas supply sprue bushing for injection molding machines
NITROJECTION CORP14 citations66
US5464342ANov 7, 1995
Pin in barrel injection molding nozzle using short pin
NITROJECTION CORP9 citations58
USRE35705EDec 30, 1997
Gas assisted injection molding apparatus utilizing sleeve and pin arrangement
NITROJECTION CORP3 citations57