| Patents for F21H 3 - Manufacturing incandescent mantles; Treatment prior to use, e.g. burning-off; Machines for manufacturing (23) |
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| 04/09/2009 | WO2009045605A2 Thermo-optically functional compositions, systems and methods of making |
| 04/02/2009 | US20090085463 Thermo-optically functional compositions, systems and methods of making |
| 08/27/2003 | CN1119547C Lampwick and its making method |
| 07/11/2001 | CN2438915Y Non-pollution lamp & candle |
| 06/27/2001 | CN1300915A Lampwick and its making method |
| 03/22/2000 | CN2370259Y Automatic glass press smelting furnace |
| 01/19/2000 | CN2359558Y Automatic machine for making small-sized lamp bulb |
| 07/18/1995 | CA1336311C Gas mantle technology |
| 05/10/1995 | EP0422047B1 Gas mantle technology |
| 06/01/1994 | DE4321078C1 Device for igniting and flaming of gas mantel in suspended position - has at igniting level a bearer component with free space for suspension and with lateral thrust aperture for insertion and removal of mantel ceramic ring |
| 09/30/1993 | WO1993019021A1 Incandescent mantles |
| 09/29/1993 | CN1076768A Incandescent mantles |
| 08/04/1993 | EP0452419A4 Incandescent mantles |
| 04/28/1993 | CN1020384C Craft lamp with colour flame and fragrance |
| 06/23/1992 | US5124286 Ceramic of zirconium, yttrium, erbium and cerium oxides; free of radioactive materials; tensile strength |
| 12/10/1991 | US5071799 Zirconia, yttria and erbia impregnated cellulosic fabric subst rate, tensile strength, nonradio active |
| 10/23/1991 | EP0452419A1 Incandescent mantles |
| 10/02/1991 | CN1055046A Manufacturing method for craft lamp with colour flame and fragrance |
| 07/04/1990 | WO1990007478A1 Incandescent mantles |
| 07/04/1990 | CA2047227A1 Incandescent mantles |
| 12/14/1989 | WO1989012200A1 Gas mantle technology |
| 10/31/1989 | US4877553 Gas mantle technology |
| 09/27/1988 | CA1242312A2 Process of forming a mantle-support tube subassembly |