Minigrip, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 1385
 
 
 
B31B MAKING BOXES, CARTONS, ENVELOPES, OR BAGS 324
 
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM2155
 
 
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 262

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5573614 Method for stabilizing a plastic zipper during attachment to a filmFeb 14, 95Nov 12, 96[B31B, B65B]
5558439 Wedge zipperJun 08, 95Sep 24, 96[B65D]
5558613 Method for reducing the variance in the forces needed to open reclosable plastic bags from within and from withoutNov 10, 94Sep 24, 96[B31B, B65D]
5520463 Foamed zipperMay 30, 95May 28, 96[B65D]
5509734 Wedge activated zipperJan 11, 94Apr 23, 96[B65D]
5462360 Stabilizing wedge zipper with high melt index interlayerMay 25, 94Oct 31, 95[B65D]
5435864 Reclosable zipper with tamper evident featureDec 09, 93Jul 25, 95[B32B, B65D]
5425825 Reclosable zipper with tamper evident featureApr 22, 93Jun 20, 95[B32B, B31B, B65D]
RE34905 Method and apparatus for making reclosable bags in a form, fill and seal machineNov 18, 93Apr 18, 95[B65B]
5384942 Closure device for bags and a method and a tool for producing sameNov 04, 93Jan 31, 95[B65D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5638587 Extruded zipper with orienting means, and method for orienting sameExpiredJul 03, 96Jun 17, 97[B29C, B65D]
5609420 Reclosable bag closure with tear containing stripsExpiredJul 03, 96Mar 11, 97[B65D]
5566429 Extruded zipper with orienting means and method for orienting sameExpiredOct 19, 94Oct 22, 96[B65D]
5551208 Method for applying zipper to film at tube on a form-fill-and-sealExpiredMay 31, 95Sep 03, 96[B65B]
5425216 Method of making reclosable plastic bags on a form, fill and seal machine with open zipper profilesExpiredJun 06, 94Jun 20, 95[B65B]
5412924 Method of making reclosable plastic bags on a form, fill and seal machineExpiredApr 11, 94May 09, 95[B65B]
5382094 Reclosable plastic bag with oscillating grip stripExpiredAug 06, 93Jan 17, 95[B65D]
5259904 Oscillating grip strip for recloseable plastic bags and method and apparatus for making the sameExpiredMay 08, 92Nov 09, 93[B29C, B31B]
RE34347 Reclosable bag especially suitable for cereal packaging, and methodExpiredAug 18, 89Aug 17, 93[B65D]
5023122 Easy open bag structureExpiredJun 09, 89Jun 11, 91[B65D]
4931003 Apparatus for making biaxially stretched tubularly extended film with transverse closure stripExpiredJun 08, 89Jun 05, 90[B29C]
4929225 Method of making bags and bag material having hinged zipper stripsExpiredJun 10, 88May 29, 90[B31B]
4925316 Reclosable bag having an outer reclosable zipper type closure and inner non-reclosable closureExpiredAug 06, 87May 15, 90[B65D]
4923701 Zippered cook-in-bag pouch and methodExpiredJan 12, 89May 08, 90[B65D]
4912616 Bag with infold along flange for differential opening forceExpiredJun 19, 89Mar 27, 90[B65D]
4909017 Reclosable bag material, method and apparatusExpiredJul 28, 89Mar 20, 90[B31B, B65B, A44B, B65D]
4909870 Method of and apparatus for attaching continuously running fastener strip to web substrateExpiredJun 27, 88Mar 20, 90[B29C, A44B]
4894975 Method and apparatus for making reclosable bags with fastener strips in a form fill and seal machineExpiredMar 09, 88Jan 23, 90[B65B]
4892414 Bags with reclosable plastic fastener having automatic sealing gasket meansExpiredFeb 06, 89Jan 09, 90[B65D]
4890935 Leak resistant zipperExpiredAug 16, 88Jan 02, 90[A44B, B65D]

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