0001140361-09-009957 8-K 1 20090415 5.02 20090420 20090420 CLEAN DIESEL TECHNOLOGIES INC 0000949428 2810 061393453 DE 1231 8-K 34 001-33710 09758373 300 ATLANTIC ST STE 702 STAMFORD CT 06901 2033277050 300 ATLANTIC ST STE 702 STAMFORD CT 06901 8-K 1 form8k.htm CLEAN DIESEL TECHNOLOGIES, INC 8-K 4-15-2009