CRTS, Inc. specializes in the application of corrosion coatings to internal field girth welds. CRTS pioneered robotic internal field coating and is able to perform robotic inspections of internally coated field joints, real time close up video, coating thickness measurements and holiday detection of a coated internal field joint. CRTS holds exclusive use of thirteen patents awarded by the United States and twenty patents awarded by other countries. Most of the significant patents pertain to the internal robotics used for the cleaning and application of coating products (FBE, liquid epoxies, plural component liquids, etc.) on internal pipeline welds.