$PTIX CORRESP SEC Filings

10-12G 10-12G/A 10-K 10-K/A 10KSB 10KSB/A 10-Q 10-Q/A 10QSB 10-QT 10SB12G 10SB12G/A 15-12B 15-12G 25 25-NSE 3 4 424A 424B1 424B3 424B4 424B5 425 4/A 5 8-A12B 8-A12B/A 8-K 8-K/A CERT CERTNAS CORRESP CT ORDER D D/A DEF 14A DEF 14C DEFA14A DEFR14A EFFECT NT 10-K NT 10-Q NTN 10K POS AM POS EX PRE 14A PRE 14C RW S-1 S-1/A S-1MEF S-3 S-3/A S-4 S-4/A S-8 S-8 POS SB-2 SB-2/A SC 13D SC 13D/A SC 13G SC 13G/A SC 14F1 SCHEDULE 13G SCHEDULE 13G/A UPLOAD