http://www.freshpatents.com/Electric-resistance-heating-devices-dtnewntc392.php USPTO Class 392 - Electric resistance heating devices en-us Tue, 18 Aug 2009 22:25:50 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Heating-apparatus-heating-method-and-semiconductor-device-manufcaturing-method-dt20090813ptan20090202231.php Tue, 18 Aug 2009 22:25:50 -0700 A heating apparatus including a filament arranged in a vacuum heating vessel comprises a base plate arranged in the vacuum heating vessel to fix the filament at a predetermined position with respect to a conductive heater forming one surface of the vacuum heating vessel. The base plate comprises a plate...