$PTN S-3 SEC Filings

Filed On	Filing
07 Feb 2022	FORM S-3
17 Aug 2018	REGISTRATION STATEMENT
03 Aug 2015	REGISTRATION STATEMENT
31 Jul 2015	REGISTRATION STATEMENT
02 Feb 2015	REGISTRATION STATEMENT
21 Nov 2012	REGISTRATION STATEMENT
11 Sep 2012	REGISTRATION STATEMENT
16 May 2011	S-3
28 Sep 2007	S-3
13 Mar 2006	S-3
23 Sep 2005	S-3
18 Feb 2004	S-3
08 Apr 2003	FILED APRIL 8, 2003
10 Dec 2002	FILED DECEMBER 10, 2002
10 Oct 2002	FILED OCTOBER 9, 2002
12 Dec 2001	FORM S-3
02 Feb 2001	REGISTRATION STATEMENT ON FORM S-3
18 Dec 2000	REGISTRATION STATEMENT ON FORM S-3
03 Aug 1999	FORM S-3 REGISTRATION STATEMENT
24 Feb 1999	REGISTRATION STATEMENT