|
| US4479923 | 6 Jul 1983 | 30 Oct 1984 | Pennzoil Company | Production of phosphoric acid and additional products from phosphate ore |
| US4569083 | 8 Feb 1984 | 4 Feb 1986 | Basic Packaging Systems, Inc. | Chain of open mouth bags |
| US4801078 | 25 Ago 1987 | 31 Ene 1989 | AB Tetra Pak | Arrangement on packing containers |
| US4971454 | 16 Nov 1989 | 20 Nov 1990 | KCL Corporation | Reclosable bag having a top closure attached to a bag body composed of multiple thermoplastic layers |
| US5114393 | 13 Jun 1990 | 19 May 1992 | B.L. Macchine Automatiche S.r.l. | Method and apparatus for manufacturing sacks, and sacks obtained thereby |
| US5918983 | 8 Nov 1996 | 6 Jul 1999 | Control Paper Co., Inc. | Security envelope |
| US6358545 | 15 May 2000 | 19 Mar 2002 | Mars UK Limited | Beverage-producing packages |
| US7090904 | 3 Jun 2004 | 15 Ago 2006 | Exopack, L.L.C. | Enhanced slider zipper multiwall bag and associated methods |
| US7744139 | 17 May 2000 | 29 Jun 2010 | Mars Incorporated | Method for seizing rows of bag packings (pouches) |
| US7927015 | 27 May 2005 | 19 Abr 2011 | Jürgen Heinemeier Günther Reimann Burkhard Lueckmann | Plastic bag with overpressure relief |