|
| US4169548 | 13 Mar 1978 | 2 Oct 1979 | Liqui-Box Corporation | Flexible dispenser valve |
| US4248362 | 27 Sep 1979 | 3 Feb 1981 | | Dispenser closure |
| US4386720 | 22 Ene 1982 | 7 Jun 1983 | Illinois Tool Works Inc. | One-piece plastic tap |
| US4444340 | 27 May 1982 | 24 Abr 1984 | Liqui-Box Corporation | Self-sealing dispensing valve and spout assembly |
| US4579260 | 13 Feb 1984 | 1 Abr 1986 | Plastipak Packaging, Inc. | Plastic blow-molded container having dispensing valve |
| US4706855 | 4 Ago 1986 | 17 Nov 1987 | | One-piece container closure of the dispensing type |
| US4711380 | 18 Ago 1986 | 8 Dic 1987 | Liqui-Box Corporation | Tamper-evident seal for a toggle-type dispensing valve |
| US4881669 | 16 Jun 1988 | 21 Nov 1989 | The Meyer Company | Dispenser valve and method of forming the same |
| US4887742 | 21 Jun 1988 | 19 Dic 1989 | The Meyer Company | One piece dispensing valve |
| US4927061 | 22 Sep 1988 | 22 May 1990 | The Meyer Company | Dispensing valve with elastic sealing tube |
| US5000359 | 11 Sep 1989 | 19 Mar 1991 | Scholle Corporation | Sealed spigot |
| US5947343 | 13 Ene 1998 | 7 Sep 1999 | Emsa-Werke Wulf GmbH & Co. | Flask for liquids having spring-actuated closure element |
| US6608116 | 14 Mar 2001 | 19 Ago 2003 | Anthony Smith Australia Pty Ltd | Polymeric closure comprising foamed polyethylene or ethylene copolymer and a resilient compound |
| USD294681 | 8 Jul 1985 | 15 Mar 1988 | Reynolds Metals Company | Dispensing valve |
| USD294682 | 8 Jul 1985 | 15 Mar 1988 | Reynolds Metals Company | Dispensing valve |
