CLIR Related SEC Filings

May 6, 2013 04:19 PM Form 8-K CLEARSIGN COMBUSTION For: May 06

May 6, 2013 04:17 PM Form S-3 CLEARSIGN COMBUSTION

May 6, 2013 04:13 PM Form 8-K CLEARSIGN COMBUSTION For: May 06

May 6, 2013 04:09 PM Form 10-Q CLEARSIGN COMBUSTION For: Mar 31