| Patents for B31B 39 - Machinery characterised by making lined envelopes or bags (549) |
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| 08/21/1997 | WO1997029966A1 Freezer storage bag |
| 07/22/1997 | US5649767 Baffle liner |
| 07/16/1997 | EP0783442A1 Container having a rectangular base and its manufacturing |
| 07/15/1997 | US5647832 Apparatus for manufacturing baffle liners |
| 06/04/1997 | EP0776270A1 A freezer storage bag |
| 05/07/1997 | CN1149027A Liquid container and method of manufacturing same |
| 04/23/1997 | EP0769369A2 Laminated film, method for production thereof, bag and package using the laminated film, and method for separation thereof |
| 04/08/1997 | US5618255 Method for manufacturing a baffle liner |
| 03/12/1997 | EP0760741A1 Method and apparatus for making a mushroom spawn bag |
| 02/24/1997 | CA2156796A1 Impervious bag or tube |
| 02/05/1997 | EP0756560A1 Windowed bag and process of making |
| 01/15/1997 | CN1140144A Method and apparatus for continuous production of package blanks |
| 01/09/1997 | WO1997000768A1 Method of manufacturing flat-bottom bags with a glued-on bottom lining |
| 01/02/1997 | EP0751081A1 Flexible liquid container and method of manufacturing same |
| 01/02/1997 | DE19522619A1 Verfahren zur Herstellung von Bodenbeuteln mit Innenriegel A process for producing flat-bottom bags with inner panel |
| 11/05/1996 | US5571361 Apparatus and method for fabricating breather bags |
| 10/29/1996 | US5569145 Method and apparatus for manufacturing a sack bottom |
| 10/03/1996 | WO1996030199A1 Method and apparatus for making a muschroom spawn bag |
| 09/04/1996 | EP0729828A2 Method and apparatus for the continuous production of package blanks |
| 08/27/1996 | US5549538 Process for manufacturing flap-style square-bottom bags |
| 08/13/1996 | US5544473 Protective shipping or mailing envelopes and method of making |
| 07/25/1996 | WO1996010524A3 Container having a rectangular base and its manufacturing |
| 07/24/1996 | CN1127178A Apparatus for production of multi-layered soft tube for making bags |
| 07/16/1996 | US5536356 Apparatus and method for fabricating breather bags |
| 06/25/1996 | US5529396 Environmentally friendly pinch bottom bag assembly and method of making |
| 04/11/1996 | WO1996010524A2 Container having a rectangular base and its manufacturing |
| 04/11/1996 | CA2200958A1 Container having a rectangular base and its manufacturing |
| 04/02/1996 | US5503611 Method for the manufacture of padded mailing containers, and apparatus therefor |
| 03/07/1996 | WO1996006733A1 A freezer storage bag |
| 12/28/1995 | WO1995035243A1 Flexible bag and method for making same |
| 11/14/1995 | US5465842 Composite endless form for making flexible, windowed, form, fill and seal bags |
| 11/02/1995 | WO1995029095A1 Windowed bag and process of making |
| 11/02/1995 | CA2188298A1 Windowed bag and process of making |
| 08/24/1995 | WO1995022457A1 Closable bag and method of making same |
| 08/24/1995 | CA2183460A1 Closable bag and method of making same |
| 07/26/1995 | EP0664208A2 Apparatus for manufacturing a multilayer tube for making bags |
| 06/28/1995 | EP0659152A1 Collapsible bag with evacuation passageway and method for making the same |
| 05/02/1995 | US5410857 Process for making windowed form, fill and seal bags |
| 03/29/1995 | EP0645078A1 Improved bag for the cultivation of mushroom spawn |
| 02/05/1995 | CA2129095A1 Method and apparatus for manufacturing a sack bottom |
| 12/27/1994 | US5376394 Bone-in food packaging article and use field of the invention |
| 11/22/1994 | US5365720 Method of making window bag assembly with high resolution graphic content replicating indicia |
| 07/13/1994 | EP0605787A1 Cushioned mailing bag and method and device for the production of cushioned mailing bags |
| 04/12/1994 | US5302402 Bone-in food packaging article |
| 03/30/1994 | CN2159869Y Making equipment for multi-layer paper bag |
| 08/24/1993 | US5237799 Method for manufacturing containers made of flexible material, having multi-layers or multi-sheets walls and practically aseptic inner surface, as well as containers and packages so obtained |
| 06/30/1993 | EP0549500A1 Sealed, washable sack, manufacturing method and machine to form its base |
| 03/30/1993 | CA2002241C Flexible disposable material for forming a food container for microwave cooking |
| 06/03/1992 | EP0487787A1 A method for manufacturing containers made of flexible material, having multi-layer or multi-sheet walls and practically aseptic inner surface, as well as a continuous band of containers so obtained |
| 05/19/1992 | CA1301206C Bag and tube folding method and apparatus |
| 01/29/1992 | EP0468619A2 Method for producing laminated film |
| 01/14/1992 | US5080643 Method of making a stand-up plastic bag |
| 12/07/1991 | CA2043961A1 Multiple ply bag with detachable inner seal pouch for packaging products |
| 11/06/1991 | CN2088031U Enveloping machine for plastic drum braiding bad |
| 07/16/1991 | CA1286136C Apparatus for manufacturing air-cushion dispatch packages |
| 06/05/1991 | CN2078229U Multifunctional machine for making reinforced paper bag |
| 06/04/1991 | US5021039 Mailing bags |
| 05/01/1991 | CN2076016U Movable mould for paper bag making machinery |
| 03/06/1991 | CN2072477U Paper plastic fibre tube compound bag-made machine |
| 03/05/1991 | US4997416 Method of making a stand-up plastic bag |
| 12/05/1990 | CN2066804U Composite crimp corrector for plastic knitting hobbin material |
| 09/04/1990 | US4954124 Stand-up plastic bag and method of making same |
| 08/22/1990 | CN2060725U Compsite bag and compsite bag machine |
| 06/27/1990 | CN2058665U Machine for making paper bags |
| 05/23/1990 | EP0369192A2 A flexible disposable material for forming a food container for microwave cooking |
| 05/15/1990 | US4925711 Packaging bag for photosensitive materials and bag-making method thereof |
| 05/02/1990 | EP0199716B1 Isothermic package |
| 05/02/1990 | CN2056633U Composite packing bag made of paper and jute, and bagmaking machine |
| 03/06/1990 | US4905453 Method and apparatus for manufacturing nested polyethylene bags |
| 02/28/1990 | CN2053569U Packing bag's weft wiring machine |
| 01/31/1990 | CN2051889U Machine for making lined paperbag |
| 01/30/1990 | CA1264974A1 Process of manufacturing sacks from synthetic thermoplastic material |
| 01/24/1990 | CN2051557U Weaving type composite paper bay machine |
| 01/02/1990 | US4890439 Flexible disposable material for forming a food container for microwave cooking |
| 12/27/1989 | CN2050001U Multi-functional paper bag manufacturing device |
| 12/27/1989 | CN2050000U Reinforcement packing paper bag machine |
| 11/29/1989 | EP0240827B1 Device for the production of air cushion mailing bags |
| 11/15/1989 | CN2047627U Annular fortified-bag machine |
| 09/27/1989 | EP0334242A1 Stand-up plastic bag and method of making same |
| 06/06/1989 | US4837849 Stand-up plastic bag and method of making same |
| 05/10/1989 | CN2037307U Special-purpose equipment for clamp ribs paper bag |
| 05/09/1989 | CA1253756A1 Cat-toilet, foil packaging particularly to be used in connection herewith, and method for producing same |
| 04/04/1989 | US4818328 Process for manufacturing sacks, bags, and the like |
| 01/24/1989 | CA1249158A1 Reinforced plastic bag |
| 01/11/1989 | CN2030542U Multiple warp and weft combination machine for weaving paper bag |
| 11/15/1988 | US4784083 Foil package and method for producing same |
| 11/02/1988 | CN88201704U Special apparatus for producing reinforced packing paper bag |
| 10/12/1988 | CN87215557U Cement packing paper sack enhanced by glass yarn and producing machinary therefor |
| 07/05/1988 | US4755064 Isothermic package |
| 05/17/1988 | US4744856 Device for producing paper from which a bag having a waterproof, leakproof bottom may be fabricated, and method for producing said bag |
| 02/23/1988 | US4726169 Process of manufacturing sacks from synthetic thermoplastic material |
| 01/19/1988 | US4720321 Method and apparatus for manufacturing packaging pads |
| 10/14/1987 | EP0240827A1 Device for the production of air cushion mailing bags |
| 01/13/1987 | US4636189 Machine for placing a plastic bag automatically into a larger feedstuff bag |
| 01/06/1987 | US4634414 Method and apparatus for manufacturing folding paper sacks |
| 12/02/1986 | US4626235 Apparatus for assembling expandable product bags within energy sleeves |
| 11/05/1986 | EP0199716A1 Isothermic package. |
| 09/24/1986 | EP0195221A1 Cat toilet, foil package in particular for use therefor, and method for its manufacture |
| 08/28/1986 | WO1986004777A1 Toilet for cats, in particular a foil package to be used for this purpose, as well as a process for its manufacture |
| 07/30/1986 | EP0189092A2 Method for making bags of thermoplastic material |