Assignee
POLYTOP CORP
US·37 granted patents·2 pending applications·1,614 citations·filing 1972–2010
Top patents by PatentIndex Score
39 records- 0197US7762438B2Dispensing closure with latch backPOLYTOP CORP·Filed 2009·Granted Jul 27, 2010·50 cites·25 claims
- 0296US4625898ADispensing closure employing living hinge with cams to momentarily deform hinge and recesses to accept camsPOLYTOP CORP·Filed 1984·Granted Dec 2, 1986·121 cites·6 claims
- 0394US7735699B2Dispensing closure having a flow conduit with key-hole shapePOLYTOP CORP·Filed 2007·Granted Jun 15, 2010·30 cites·8 claims
- 0494US7637402B2Dispensing cap with center channel and helical flow profilePOLYTOP CORP·Filed 2007·Granted Dec 29, 2009·33 cites·6 claims
- 0593US5542585ADispensing closure with pivotably mounted spout and means for limiting travel thereofPOLYTOP CORP·Filed 1994·Granted Aug 6, 1996·188 cites·2 claims
- 0692US4377247ADispensing closure employing living hingePOLYTOP CORP·Filed 1980·Granted Mar 22, 1983·100 cites·6 claims
- 0790US4220248AClosure with hinged lid and cam and spring elements holding lid open or closedPOLYTOP CORP·Filed 1978·Granted Sep 2, 1980·80 cites·10 claims
- 0889USD621260SDispensing closurePOLYTOP CORP·Filed 2009·Granted Aug 10, 2010·33 cites·1 claims
- 0989US7314150B2Dispensing closure with cap structure having dual living hingesPOLYTOP CORP·Filed 2007·Granted Jan 1, 2008·17 cites·14 claims
- 1089US4124151AToggle type dispensing closurePOLYTOP CORP·Filed 1976·Granted Nov 7, 1978·69 cites·7 claims
- 1186US7128227B2Dispensing closure with stop wall for positive alignment on containerPOLYTOP CORP·Filed 2003·Granted Oct 31, 2006·45 cites·17 claims
- 1285US7980432B2Dispensing closure having a flow conduit with key-hole shapePOLYTOP CORP·Filed 2009·Granted Jul 19, 2011·14 cites·22 claims
- 1385US5271536AFlexible holder for "living" hinge joining lid to closure body of dispensing closurePOLYTOP CORP·Filed 1992·Granted Dec 21, 1993·70 cites·3 claims
- 1485US4718567AChild resistant dispensing closurePOLYTOP CORP·Filed 1987·Granted Jan 12, 1988·87 cites·14 claims
- 1583US4047495AChild resistant dispensing closuresPOLYTOP CORP·Filed 1976·Granted Sep 13, 1977·52 cites·4 claims
- 1681US3977557AContainer-closure structure employing fitment to prevent closure removalPOLYTOP CORP·Filed 1975·Granted Aug 31, 1976·48 cites·5 claims
- 1780US6050459ARigid dip tube connector for a liquid spray dispenserPOLYTOP CORP·Filed 1999·Granted Apr 18, 2000·52 cites·14 claims
- 1877USD629685SDispensing closurePOLYTOP CORP·Filed 2010·Granted Dec 28, 2010·19 cites·1 claims
- 1977US4759455AChild resistant closure with deformable panelPOLYTOP CORP·Filed 1987·Granted Jul 26, 1988·56 cites·20 claims
- 2075US7322493B2Dispensing closure having complete peripheral sealPOLYTOP CORP·Filed 2004·Granted Jan 29, 2008·16 cites·15 claims
- 2175US4081113AChild resistant dispensing closurePOLYTOP CORP·Filed 1976·Granted Mar 28, 1978·37 cites·8 claims
- 2274US4209114ADispensing closure structuresPOLYTOP CORP·Filed 1977·Granted Jun 24, 1980·26 cites·4 claims
- 2373US4047643ASafety dispensing closure with movable retainerPOLYTOP CORP·Filed 1972·Granted Sep 13, 1977·36 cites·13 claims
- 2469US4903870ADispensing closurePOLYTOP CORP·Filed 1988·Granted Feb 27, 1990·44 cites·14 claims
- 2567US4081108ATamper evident one-piece dispensing closuresPOLYTOP CORP·Filed 1976·Granted Mar 28, 1978·29 cites·1 claims
- 2667US3957181AChild resistant dispensing closurePOLYTOP CORP·Filed 1975·Granted May 18, 1976·28 cites·5 claims
- 2765US4219138ADispensing closure utilizing a sealing element supported by a washer springPOLYTOP CORP·Filed 1978·Granted Aug 26, 1980·26 cites·6 claims
- 2864US4282991ADispensing closure sealsPOLYTOP CORP·Filed 1980·Granted Aug 11, 1981·30 cites·4 claims
- 2961US4776475AChild resistant dispensing closurePOLYTOP CORP·Filed 1987·Granted Oct 11, 1988·33 cites·17 claims
- 3059US4172540ADispensing closurePOLYTOP CORP·Filed 1977·Granted Oct 30, 1979·30 cites·10 claims
- 3157US4756451AChild resistant closure with energy planesPOLYTOP CORP·Filed 1987·Granted Jul 12, 1988·28 cites·9 claims
- 3254US2006043100A1Vial with hinged cap and method of making samePOLYTOP CORP·Filed 2005·Application pending·0 cites
- 3353US2006006578A1Vial with hinged cap and method of making samePOLYTOP CORP·Filed 2005·Application pending·0 cites
- 3450US5890633ATwo component, molded plastic dispenser operating on push-pull principlePOLYTOP CORP·Filed 1997·Granted Apr 6, 1999·20 cites·15 claims
- 3550US5356044ATamper evident seal for dispensing closurePOLYTOP CORP·Filed 1993·Granted Oct 18, 1994·23 cites·7 claims
- 3647US5524799ADispensing closure employing standards with bearings to receive spout thereinPOLYTOP CORP·Filed 1994·Granted Jun 11, 1996·17 cites·9 claims
- 3747US3967764AChild-resistant closures with limited spout accessibilityPOLYTOP CORP·Filed 1974·Granted Jul 6, 1976·13 cites·1 claims
- 3836US5190176AChild resistant closure with protective flange and canted upper wallPOLYTOP CORP·Filed 1991·Granted Mar 2, 1993·11 cites·3 claims
- 3914US4164305ASpray type dispensing closurePOLYTOP CORP·Filed 1977·Granted Aug 14, 1979·3 cites·5 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →