Patent name Easy-to-open and re-sealable package Patent applicants P&G Principal Applicant Address Ohio State Inventor G. J. Camargo-Paroti; G.D.I. Garcia; M.M. D.C. Tutz; M.A.H. Nelson; I.E.P. Kuroki Application (Patent) No. 02814804.5 Date of Application 2002.07.19 Certification Date Approval Notice No. 1535234 Approval Notice Date 2004.10.06 Instruction Manual CD-ROM D0440 Main Classification Number B65D75/58 Categorization Number B65D75/58 Division Original Application No. Priority Summarization Packaging Bags (10) Used to store products such as powdered or granular lotions, pet foods, coffee, and cereals. . The bag has a weak line (28) that is easy to open. The lines of weakness are preferably generated with laser scratches. The packaging bag also has a component (32) for resealing after the user has opened the first time, preferably a hook and loop fastening system. Sovereign item 1. A packaging bag comprising a front panel and a back panel and two inwardly folded side panels, each panel having an upper edge and a lower edge, and a top and a bottom panel joined by the front panel and the back panel. At the bottom, the top is further defined by a line of weakness that spans one of the front and back panels and two side panels, which are preferably formed using one of the following methods: chemical treatment, laser scratches , laser drilling, mechanical scratching, mechanical drilling, embossing methods, or a combination thereof, and more preferably wherein the weak line is formed by a laser scratch method.