| Patents for B31B 39 - Machinery characterised by making lined envelopes or bags (549) |
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| 05/15/2002 | CN1084667C Apparatus for producing multi-layered soft tube for making bags |
| 04/24/2002 | EP1198343A1 Method and apparatus for making internally-reinforced bag assembly |
| 04/16/2002 | US6371646 Bulk bag with multiple ply walls and a method of forming it from tubular blanks |
| 04/16/2002 | US6371643 Multi-Layered freezer storage bag |
| 03/27/2002 | CN1081586C Container having rectangular base and its manufacturing |
| 02/28/2002 | WO2001087598A3 Wet waste compostable bag and method and apparatus for manufacturing same |
| 02/27/2002 | EP1181196A2 Multi-layered freezer storage bag |
| 01/17/2002 | WO2002004317A1 Inflatable bag with a closure and method of producing the same |
| 01/17/2002 | CA2415231A1 Inflatable bag with a closure and method of producing the same |
| 01/09/2002 | EP1170225A1 Inflatable bag for packaging and protection and its method of producing |
| 12/12/2001 | CN1075998C Freezer storage bag |
| 11/22/2001 | WO2001087598A2 Wet waste compostable bag and method and apparatus for manufacturing same |
| 11/22/2001 | US20010043763 Multi-layered freezer storage bag |
| 11/01/2001 | US20010036891 Apparatus and method for automatically forming an article |
| 10/10/2001 | EP1140492A1 Coextruded multilayer film materials and containers made therefrom |
| 09/26/2001 | CN2450093Y Double-layer fruit bag forming machine |
| 09/12/2001 | CN1070805C Liquid contuiner and method of manufacturing same |
| 08/28/2001 | US6280085 Flexible package with peel-away covering |
| 08/09/2001 | WO2000072651A3 Multi-layered freezer storage bag |
| 06/26/2001 | US6251154 Dust bag and method of production |
| 06/12/2001 | US6244746 Laminated film, method for production thereof, bag and package using the laminated film, and method for separation thereof |
| 05/15/2001 | US6231237 Container having rectangular base and its manufacturing |
| 04/18/2001 | CN1064620C Method and apparatus for continuous production of package blanks |
| 04/11/2001 | EP1090740A2 Bag making |
| 04/10/2001 | US6213926 Apparatus and method for automatically forming an article |
| 02/22/2001 | DE19939160A1 Stiffened and/or reinforced paper for carrier bags, comprises transparent paper with at least two plastics cladding layers laid in different directions for color contrast with high stability and tear resistance |
| 01/03/2001 | CN2412842Y Screw feeding peripheral tightening tubular material conveying device |
| 12/07/2000 | WO2000073051A1 Method and apparatus for making internally-reinforced bag assembly |
| 12/07/2000 | WO2000072651A2 Multi-layered freezer storage bag |
| 10/31/2000 | US6139482 Bulk bag or liner and method of making it |
| 10/17/2000 | US6132351 Method and apparatus for making internally-reinforced bag assembly |
| 09/26/2000 | US6123654 Bag liner loader |
| 09/13/2000 | CN2395875Y Turnover plastic coating combiner with double rubber rollers |
| 08/22/2000 | US6105337 System for making waterproof bags by lining bag shell with tubular film |
| 08/09/2000 | CN2390746Y Hollow hemmer for paper surface plastic woven bag |
| 07/19/2000 | EP0833744B1 Method of manufacturing flat-bottom bags with a bottom lining |
| 07/18/2000 | US6090028 Bag and method of making the same |
| 07/12/2000 | EP1017560A1 Bottom sack |
| 07/04/2000 | US6083584 Perimeter seals for multi-layer materials and method |
| 06/15/2000 | WO2000034038A1 Coextruded multilayer film materials and containers made therefrom |
| 06/14/2000 | EP1007342A1 Sack |
| 05/24/2000 | EP0783442B1 Container having a rectangular base and its manufacturing |
| 05/16/2000 | US6063221 For use in the packaging of products, especially food products such as meat; and to a method for making a bag from the film. |
| 05/02/2000 | US6056679 Apparatus and method for automatically forming an article |
| 04/27/2000 | DE19847321A1 Verfahren zum Herstellen von mehrwandigen, vorzugsweise doppelwandigen Kunststoffbeuteln, insbesondere Zugbandbeuteln A process for producing multi-walled, preferably double-walled plastic bags, in particular Zugbandbeuteln |
| 04/19/2000 | EP0993933A2 Method of manufacturing multiple walled, preferably double walled, plastic bags |
| 04/14/2000 | CA2285819A1 Process for manufacturing multi-walled, preferably double-walled, plastic bags, in particular draw-string bags |
| 02/15/2000 | US6024220 Encapsulated seam for multilayer materials |
| 01/26/2000 | EP0974450A2 Window bags and a method of manufacture thereof |
| 01/11/2000 | CA2049550C Method of making window bag assembly with content indicia |
| 01/04/2000 | CA2102755C Bone-in food packaging article and use |
| 12/15/1999 | EP0963326A1 Perimeter seals and encapsulated seam for multilayer materials |
| 12/15/1999 | CN2353516Y Threading device |
| 12/15/1999 | CN2353515Y Winding apparatus |
| 11/17/1999 | EP0776270A4 A freezer storage bag |
| 10/05/1999 | US5961433 Method and apparatus for forming bags from flexible plastics sheet |
| 09/14/1999 | US5952025 Use in microwave cooking constructed of an elongated tube of flexible material closed at the ends by a cold seal closure that cannot be opened without tearing; cooking heat softens seal for easy opening without tearing tube; popcorn |
| 08/31/1999 | US5944646 Apparatus and method for automatically forming an article |
| 08/19/1999 | DE19805720A1 Block bottom or cross bottom bag, for transporting and storing building materials, for example |
| 08/12/1999 | DE19804735A1 Multiple web registration in continuous production of laminate for plastics lined paper sacks |
| 07/08/1999 | WO1999033714A1 Perimeter seals and encapsulated seam for multilayer materials |
| 06/22/1999 | US5913764 Method of manufacturing flat-bottom bags with a glued-on bottom lining |
| 06/09/1999 | CN2322782Y Compound bag making machine for cement packaging |
| 05/12/1999 | EP0914939A2 Method of manufacturing flat-bottom bags with a glued-on bottom lining |
| 03/16/1999 | US5882287 Device for manufacturing a multilayered tube for the manufacture of paper bags |
| 02/24/1999 | CN2308503Y Prodn. appts. for water soluble stressed compounded packing bag |
| 02/24/1999 | CN1209105A Freezer storage bag |
| 02/16/1999 | US5871096 Concealed promotional message flexible packaging and method of making same |
| 01/12/1999 | US5857951 Liquid container and method of manufacturing same |
| 12/10/1998 | DE19720112A1 Desiccant for a tubular packaging sack |
| 12/02/1998 | EP0880457A1 Freezer storage bag |
| 12/02/1998 | EP0756560A4 Windowed bag and process of making |
| 10/15/1998 | DE19721289A1 Device for inserting sacks into receptacle |
| 10/14/1998 | CN2294159Y Vertical machinery set for plastic paper composite laminate web of bag |
| 09/29/1998 | US5814382 Bag and method of making the same |
| 09/08/1998 | US5804265 Functional freezer storage bag |
| 08/26/1998 | EP0760741A4 Method and apparatus for making a mushroom spawn bag |
| 08/18/1998 | US5795281 Apparatus and method for automatically forming an article |
| 08/11/1998 | US5792306 Sealing apparatus useful in bag-making machine |
| 08/06/1998 | CA2196923A1 Pouch bag with interior double-folded-member |
| 07/28/1998 | US5786010 Bag and method of making the same |
| 07/08/1998 | CN1186733A Production of composite fibre paper bag for cement and its making equipment |
| 07/07/1998 | US5776044 Closable bag and method of making same |
| 06/30/1998 | US5772569 Method and apparatus for the continuous production of package blanks |
| 06/30/1998 | US5772332 Container having a rectangular base and its manufacturing |
| 06/16/1998 | US5766399 Closable bag and method of making same |
| 05/13/1998 | EP0841148A2 Sealing apparatus useful in bag-making machine |
| 04/18/1998 | CA2217257A1 Sealing apparatus useful in bag-making machine |
| 04/08/1998 | EP0833744A1 Method of manufacturing flat-bottom bags with a glued-on bottom lining |
| 04/07/1998 | CA2114568C Baffle liner and method and apparatus for manufacturing |
| 03/17/1998 | US5728037 Environmentally friendly pinch bottom bag assembly and method of making |
| 02/18/1998 | EP0824065A2 Method and apparatus for forming bags from flexible plastics sheet |
| 02/18/1998 | CN2274573Y Adhesive coating weft of fiber composite cement bag and weft guiding apparatus |
| 02/11/1998 | CN2274129Y Warp glue-applicating and guiding device for fiber composite cement bag |
| 01/20/1998 | CA2210779A1 Method and apparatus for forming bags from flexible plastics sheet |
| 12/11/1997 | WO1997046376A1 Bottom sack |
| 10/15/1997 | CN1162293A Container having rectangular base and its manufacturing |
| 09/02/1997 | US5662576 Method of manufacturing an improved bag for the cultivation of mushroom spawn and apparatus therefor |
| 08/26/1997 | US5660477 Liquid container and method of manufacturing same |
| 08/26/1997 | US5659997 Bag for the cultivation of mushroom spawn |