$PTEN SEC Filings

Filing Filed On
FORM 4 SUBMISSION 03 Aug 2006
FORM 4 SUBMISSION 03 Aug 2006
FORM 4 SUBMISSION 03 Aug 2006
FORM 4 SUBMISSION 03 Aug 2006
FORM 4 SUBMISSION 05 Apr 2006
FORM 4 SUBMISSION 05 Jan 2006
FORM 4 SUBMISSION 05 Jan 2006
FORM 4 SUBMISSION 05 Jan 2006
FORM 4 SUBMISSION 05 Jan 2006
FORM 4 SUBMISSION 05 Jan 2006
FORM 4 SUBMISSION 23 Sep 2005
FORM 4 SUBMISSION 05 Aug 2005
FORM 4 SUBMISSION 05 Aug 2005
FORM 4 SUBMISSION 03 Aug 2005
FORM 4 SUBMISSION 03 Aug 2005
FORM 4 SUBMISSION 08 Jul 2005
FORM 4 SUBMISSION 17 Jun 2005
FORM 4 SUBMISSION 17 Jun 2005
FORM 4 SUBMISSION 17 Jun 2005
FORM 4 SUBMISSION 31 May 2005