Assignee
HARREL INC
US·12 granted patents·641 citations·filing 1978–2004
Top patents by PatentIndex Score
12 records- 0198US4721589AExtruder viscosity control system and methodHARREL INC·Filed 1983·Granted Jan 26, 1988·161 cites·26 claims
- 0294US5725814AExtrusion of an article of varying contentHARREL INC·Filed 1995·Granted Mar 10, 1998·121 cites·31 claims
- 0393US4272466ASystem and method of temperature control for plastics extruderHARREL INC·Filed 1980·Granted Jun 9, 1981·78 cites·15 claims
- 0493US4209476AMethod and apparatus for fabrication of extruded articlesHARREL INC·Filed 1978·Granted Jun 24, 1980·76 cites·20 claims
- 0591US4613471AExtruded plastic foam density control system and methodHARREL INC·Filed 1984·Granted Sep 23, 1986·66 cites·48 claims
- 0685US5695789AApparatus for extrusion of an article of varying contentHARREL INC·Filed 1995·Granted Dec 9, 1997·55 cites·33 claims
- 0782US4430698AThree-mode process controlHARREL INC·Filed 1981·Granted Feb 7, 1984·44 cites·5 claims
- 0866US6652785B1Operatorless extrusion systemHARREL INC·Filed 2001·Granted Nov 25, 2003·6 cites·23 claims
- 0963US7018191B2Plastics extruder dimension and viscosity control systemHARREL INC·Filed 2003·Granted Mar 28, 2006·5 cites·20 claims
- 1061US7648658B2Alternate polymer extrusion method with reduced droolHARREL INC·Filed 2004·Granted Jan 19, 2010·4 cites·9 claims
- 1154US4954719ASheet thickness gauging method and system with auto calibrationHARREL INC·Filed 1988·Granted Sep 4, 1990·14 cites·13 claims
- 1244US4734922ANuclear gauge traverseHARREL INC·Filed 1986·Granted Mar 29, 1988·11 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →