http://www.freshpatents.com/Superconductor-technology--apparatus-material-process-dtnewntc505.php USPTO Class 505 - Superconductor technology: apparatus, material, process en-us Thu, 24 Jul 2008 15:09:18 -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/Refrigerant-liquid-level-measuring-device-refrigerant-liquid-level-measuring-method-and-superconducting-magnet-device-dt20080717ptan20080171663.php Thu, 24 Jul 2008 15:09:18 -0700 A refrigerant liquid level measuring device that measures a refrigerant liquid level in a short period is provided. A series sensor arrangement includes a plurality of sensor elements electrically connected in series. The sensor elements each have a superconducting wire and a normal conductor heater electrically connected to the wire,...