Zip-Pak, Inc.
32Patents
0Active
32Granted
37Portfolio score
Filing activity: Dec 10, 1987 → Sep 27, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5024537A | Tape carried pre-cut zipper | Emerging Cross-Sectional Technologies | 95 | Expired |
| US4947525A | Zipper closure with internal peel seal | Emerging Cross-Sectional Technologies | 83 | Expired |
| US5085031A | Transverse zipper application for horizontal form, fill and seal machine | Performing Operations; Transporting | 81 | Expired |
| US4840012A | Zippered film feed | Performing Operations; Transporting | 75 | Expired |
| US5063639A | Zippered closure for packages | Emerging Cross-Sectional Technologies | 75 | Expired |
| US5096516A | Method of making dual reuseable pouches | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4941307A | Zipper guide system for form tooling | Performing Operations; Transporting | 58 | Expired |
| US5063069A | Zippered closure for thermoformed package | Performing Operations; Transporting | 55 | Expired |
| US4896775A | Zippered thermal form tray system | Performing Operations; Transporting | 55 | Expired |
| US4869048A | Stretcher for package forming | Performing Operations; Transporting | 55 | Expired |
| US4974395A | Zipper guide and spreader device for form, fill and seal machines | Emerging Cross-Sectional Technologies | 54 | Expired |
| US4993212A | Method and apparatus for guiding a zippered film in form, fill and seal package making machines | Emerging Cross-Sectional Technologies | 53 | Expired |
| US5072571A | Zippered film plural sheet strip guide system and method for zippered film for form, fill and seal package making machines | Performing Operations; Transporting | 51 | Expired |
| US4949527A | Method of forming a reclosable tray | Performing Operations; Transporting | 45 | Expired |
| US4986054A | Fill tube spreader | Performing Operations; Transporting | 45 | Expired |
| US5042224A | Zipper tracking in form, fill and seal package machines | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5067302A | Sealing jaws for zippered foil or film in form, fill and seal machines | Performing Operations; Transporting | 34 | Expired |
| US5015223A | Hotseal jaws and cutoff knife assembly for processing thermoplastic film bag making material | Performing Operations; Transporting | 33 | Expired |
| US5071689A | Hinged zipper | Emerging Cross-Sectional Technologies | 29 | Expired |
| USD342220S | Snowmobile hood | General | 29 | Expired |
| US5026563A | Zippered closure for thermoformed package | Performing Operations; Transporting | 24 | Expired |
| US5065899A | Sectional or pre-cut zipper strips, magazine storage and feed means, and method | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5047002A | Apparatus and method for making Z-folded zippered film | Performing Operations; Transporting | 21 | Expired |
| US5014499A | Stretch stress relief for bag thermo-cross-seals in vertical form, fill and seal machines | Performing Operations; Transporting | 19 | Expired |
| US5054270A | Bag support/spreader for vertical form, fill and seal machines | Performing Operations; Transporting | 18 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.