Merrimack, New Hampshire [RenewableEnergyAccess.com] GT Solar Technologies’ parent company, GT Equipment Technologies, Inc., has purchased two patents from a major European solar company for an advanced technique for coating crucibles with silicon nitride. GT also purchased patent applications in Japan and Norway for the same technology. Crucibles coated using GT’s proprietary technology are a major ingredient in GT’s Directional Solidification System (DSS) for growing multi-crystalline ingots for the solar industry. The ingots are then sliced into wafers to make solar cells. They also provide GT with significant legal advantages in most markets for ingot production.