|
| US4052590 | 28 Oct 1976 | 4 Oct 1977 | National Presto Industries, Inc. | Electric appliance with intermittently staked sheathed heating element |
| US4115918 | 15 Jun 1977 | 26 Sep 1978 | National Presto Industries, Inc. | Method of making electric appliance with intermittently staked sheathed heating element |
| US4913338 | 27 Dic 1988 | 3 Abr 1990 | SEB S.A. | Process for producing a heating plate and heating article relating to this |
| US5189947 | 29 Jun 1992 | 2 Mar 1993 | Chiaphua Industries Limited | Rice and vegetable steamer |
| US5515773 | 16 Feb 1995 | 14 May 1996 | The Rival Company | Steam oven |
| US6160244 | 19 May 1999 | 12 Dic 2000 | NGK Insulators, Ltd. | Susceptors |
| US7053338 | 8 Jul 2005 | 30 May 2006 | | Electric cooker |
| USD429596 | 21 Nov 1997 | 22 Ago 2000 | The Rival Company | Slow cooker |
| USD434940 | 25 Feb 2000 | 12 Dic 2000 | The Holmes Group | Slow cooker |
