$PTN SEC Filings

Filing Filed On
S-3 16 May 2011
8-K 16 May 2011
S-8 16 May 2011
10-Q 13 May 2011
424B3 13 May 2011
8-K 12 May 2011
UPLOAD 11 May 2011
CORRESP 07 Apr 2011
DEF 14A 05 Apr 2011
UPLOAD 23 Mar 2011
PRE 14A 17 Mar 2011
PRIMARY DOCUMENT 17 Mar 2011
PRIMARY DOCUMENT 17 Mar 2011
SC 13G/A 16 Mar 2011
PRIMARY DOCUMENT 11 Mar 2011
SC 13G/A 11 Mar 2011
SC 13G 10 Mar 2011
SC 13G 10 Mar 2011
SC 13G 07 Mar 2011
PRIMARY DOCUMENT 04 Mar 2011