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POLYTOP CORP

Overview
  • Total Patents
    258
About

POLYTOP CORP has a total of 258 patent applications. Its first patent ever was published in 1960. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets packaging and shipping, machines and consumer goods are PHOENIX CLOSURES INC, SIKVIST KLOUZHERZ FORIN INK and SEAQUIST CLOSURES FOREIGN INC.

Patent filings per year

Chart showing POLYTOP CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hazard Robert E 55
#2 Wilson Woodrow S 37
#3 Skillin Clifford W 32
#4 Brannon Patrick J 14
#5 Johnson Joseph E 13
#6 Hazard R 13
#7 Romanov Sergey 12
#8 Akers Edward G 8
#9 La Vange Donald 8
#10 Hazard R E 7

Latest patents

Publication Filing date Title
US2010065588A1 Dispensing closure having a flow conduit with key-hole shape
US2010065589A1 Dispensing closure with latch back
WO2009155460A1 Fan orifice dispensing closure
WO2008115295A1 Dispensing closure with latch back
CA2662188A1 Dispensing closure having a flow conduit with key-hole shape
CA2662528A1 Dispensing closure with obstructed, offset, non-linear flow profile
US2008054026A1 Dispensing cap with center channel and helical flow profile
CA2527261A1 Dispensing closure having flow modulator and syneresis capture
DE102005032832A1 Manufacture of dispensing vial, comprises molding dispensing vial in mold, with vial including vial lid being pivotably movable about living hinge between open and closed positions, and cooling plastic material
US2006006578A1 Vial with hinged cap and method of making same
US7322493B2 Dispensing closure having complete peripheral seal
GB0420853D0 Dispensing closure with stop wall for positive alignment on container
US7128227B2 Dispensing closure with stop wall for positive alignment on container
US6050459A Rigid dip tube connector for a liquid spray dispenser
US5890633A Two component, molded plastic dispenser operating on push-pull principle
US5524799A Dispensing closure employing standards with bearings to receive spout therein
US5542585A Dispensing closure with pivotably mounted spout and means for limiting travel thereof
US5356044A Tamper evident seal for dispensing closure
US5271536A Flexible holder for "living" hinge joining lid to closure body of dispensing closure
US5190176A Child resistant closure with protective flange and canted upper wall