0001140361-09-022528 4 1 20091001 20091005 20091005 GRAY DEREK R 0001246217 4 34 001-33710 091105186 CLEAN DIESEL TECHNOLOGIES INC 0000949428 2810 061393453 DE 1231 10 MIDDLE STREET SUITE 1100 BRIDGEPORT CT 06604 2034165290 10 MIDDLE STREET SUITE 1100 BRIDGEPORT CT 06604 4 1 doc1.xml FORM 4