The process developed by Somark involves a geometric array of micro-needles and an ink capsule, which is used to 'tattoo' an animal. The ink can be detected from 4 feet away. A startup company developing chipless RFID ink has tested its product on cattle and laboratory rats. Somark Innovations announced this week that it successfully tested biocompatible RFID ink, which can be read through animal hairs. The passive RFID technology could be used to identify and track cows to reduce financial losses from Bovine Spongiform Encephalopathy (mad cow disease) scares. Somark, which formed in 2005, is located at the Center...