$PTEN SEC Filings

Filing Filed On
CORRESP 09 Dec 2008
UPLOAD 25 Nov 2008
FORM 10-Q 03 Nov 2008
LIVE FILING 30 Oct 2008
FORM 4 SUBMISSION 02 Sep 2008
FORM 10-Q 01 Aug 2008
FORM S-8 01 Aug 2008
LIVE FILING 31 Jul 2008
SC 13G/A 09 Jul 2008
FORM 4 SUBMISSION 11 Jun 2008
DOC ONE 10 Jun 2008
FORM 4 SUBMISSION 06 Jun 2008
FORM 4 SUBMISSION 06 Jun 2008
LIVE FILING 06 Jun 2008
SC 13G/A 04 Jun 2008
FORM 4 SUBMISSION 15 May 2008
FORM 4 SUBMISSION 15 May 2008
FORM 4 SUBMISSION 08 May 2008
FORM 4 SUBMISSION 08 May 2008
FORM 10-Q 05 May 2008