Flow Industries Ltd. developed and first introduced the proprietary, patented AIRSHOCK® technology in 1998.   The first application was for water well rehabilitation where it is used extensively since then in the US and all around the world by the   leading water well contractors including Layne Christensen (NYSE: LAYN), Veolia (NYSE: VE), and others.  Among AIRSHOCK® applications are industrial cleaning and silo/bin flow control. Flow Industries has recently developed AIRSHOCK® for use in various oil & gas applications.   AIRSHOCK® tools and process are protected by US patents #6,250,388, #6,630,032, #7,770,638, #7,882,895 and foreign patents. Other patents are pending.