|
| US4009892 | 3 Feb 1975 | 1 Mar 1977 | | Method and product for preventing fraud in document identification |
| US4436213 | 5 Nov 1982 | 13 Mar 1984 | Minnesota Mining and Manufacturing Co. | Container having tamper evident seal and imaged polymer film useful as such a seal |
| US4454956 | 16 May 1983 | 19 Jun 1984 | Minnesota Mining & Manufacturing Company | Tamper indicating composite tape closure |
| US4480760 | 13 Abr 1983 | 6 Nov 1984 | | Tamper visible indicator for container lid |
| US4489841 | 18 Feb 1983 | 25 Dic 1984 | Tri-Tech Systems International, Inc. | Tamper evident closures and packages |
| US4505399 | 21 Jun 1984 | 19 Mar 1985 | | Tamper-indicating device and method |
| US4519515 | 7 Dic 1983 | 28 May 1985 | | Disc for indicator for tamper-evident lid |
| US4715528 | 9 Sep 1986 | 29 Dic 1987 | Tetra Pak International AB | Reclosable opening arrangement on a packing container |
| US4720423 | 25 Ago 1986 | 19 Ene 1988 | Minnesota Mining and Manufacturing Company | Package opening system |
| US4781323 | 7 Jul 1986 | 1 Nov 1988 | Minnesota Mining and Manufacturing Company | Reclosable closure assembly for container |
| US4865198 | 1 Feb 1988 | 12 Sep 1989 | R. J. Reynolds Tobacco Company | Overwrapped package with tamper indicating means |
| US4874096 | 5 Jul 1988 | 17 Oct 1989 | Sales S.p.A. | Sealed packet with an adhesive strip for opening and reclosing |
| US4905851 | 30 Dic 1988 | 6 Mar 1990 | Tri-Tech Systems International, Inc. | Tamper evident closures and packages with color changing means and separable portions of the closures and method of forming the same |
| US4911302 | 13 Mar 1989 | 27 Mar 1990 | R. J. Reynolds Tobacco Company | Method for imprinting overwrapped packages |
| US4986429 | 12 Jun 1989 | 22 Ene 1991 | | Color indicating tamper-proof seal |
| US5020831 | 23 Ago 1989 | 4 Jun 1991 | Arysearch Arylan AG | Imprinted product with tamperproof seal method of producing product |
| US5135262 | 20 Jun 1990 | 4 Ago 1992 | Alcan International Limited | Method of making color change devices activatable by bending and product thereof |
| US5152412 | 18 Jul 1990 | 6 Oct 1992 | Continental White Cap, Inc. | Tamper evident closure using microcapsules |
| US5153042 | 16 May 1989 | 6 Oct 1992 | Minnesota Mining and Manufacturing Company | Tamper-indicating labelstock |
| US5219194 | 28 Feb 1992 | 15 Jun 1993 | Viking Corporation | Security seal |
| US5234732 | 18 Mar 1991 | 10 Ago 1993 | Philip Morris Inc. | Tamper-indicating wrappers |
| US5282650 | 30 Abr 1992 | 1 Feb 1994 | Alcan International Limited | Color change devices activatable by bending |
| US5312680 | 2 Jul 1993 | 17 May 1994 | | Tamper-revealing sealing device for packaged documents |
| US5325721 | 17 Feb 1993 | 5 Jul 1994 | Minnesota Mining and Manufacturing Company | System for indicating exposure to preselected temperatures or tampering |
| US5631068 | 13 Feb 1995 | 20 May 1997 | Trigon Packaging Corporation | Self-containing tamper evident tape and label |
| US5798169 | 3 Dic 1996 | 25 Ago 1998 | Sealed Air Corporation | Self-containing tamper evident seal |
| US6531528 | 2 Abr 2002 | 11 Mar 2003 | DAP Products Inc. | Ready to use spackle/repair product containing dryness indicator |
| US6609865 | 24 Abr 2002 | 26 Ago 2003 | Ipex Inc. | Color pressure-sensitive fastener |
| US6939826 | 25 Jun 2002 | 6 Sep 2005 | Appleton Papers, Inc. | Product authentication |
| US7682696 | 10 Nov 2004 | 23 Mar 2010 | Sabic Innovative Plastics IP B.V. | Medical article and method of making and using the same |
| US7913870 | 1 May 2006 | 29 Mar 2011 | Pactiv Corporation | Tamper evident container |
| USD321128 | 17 Feb 1989 | 29 Oct 1991 | | Can or the like |
| USRE33893 | 20 Ago 1990 | 21 Abr 1992 | Minnesota Mining and Manufacturing Company | Reclosable closure assembly for container |
