|
| US4199827 | 4 Oct 1977 | 29 Abr 1980 | | Drain traps with strainer means |
| US4418432 | 26 Ago 1981 | 6 Dic 1983 | | Drain filter having filamentary surface irregularities to entangle hair and debris |
| US4671976 | 13 Ago 1986 | 9 Jun 1987 | | Web-type stock material with upwardly projecting filamentary elements and defined periphery |
| US4999858 | 21 Mar 1990 | 19 Mar 1991 | | Floor drain pipe with improved straining structure |
| US5003642 | 14 May 1986 | 2 Abr 1991 | | Foreign matter trap for shower drain |
| US5377362 | 20 Ago 1992 | 3 Ene 1995 | | Combined sink strainer stopper and scrub brush |
| US5617605 | 16 Feb 1995 | 8 Abr 1997 | Paula J. Hoerner | Combination cleaning and plunger tool |
| US5724684 | 6 Nov 1996 | 10 Mar 1998 | | Raised strainer |
| US6047432 | 4 Feb 1998 | 11 Abr 2000 | | Disposal brush |
| US6088843 | 8 Abr 1999 | 18 Jul 2000 | | Drain strainer with sieve receptacle and bristle extension |
| US6163896 | 20 Ene 2000 | 26 Dic 2000 | | Auxiliary stall shower strainer |
| US6487729 | 5 Abr 2001 | 3 Dic 2002 | | Hair trap for drains and sinks |
| US6491814 | 26 Oct 2001 | 10 Dic 2002 | | Sani drain |
| US6811692 | 13 Dic 2001 | 2 Nov 2004 | Sim-Tech Filter, Inc. | Bristled septic filter |
| US7861329 | 18 Mar 2010 | 4 Ene 2011 | | Disposable drain filter |
| USD381068 | 12 Jul 1995 | 15 Jul 1997 | | Gutter filter |
| USD427774 | 7 Jul 1999 | 11 Jul 2000 | | Disposal stopper-strainer-brush |
| USD441536 | 10 Nov 2000 | 8 May 2001 | | Kitchen scraper-brush |
| USD650471 | 6 Abr 2011 | 13 Dic 2011 | | Hair trap for drain |
