New Post Public Reply Private Reply Replies (1) Message Board Keep ← Newer Older → Learningtoinvest CashStrapped #16674 Feb 5, 2018 at 3:53 PM 279 Post number Post of 82,692 Go How did Duo, SecureAiuth, and other companies sell similar products in the US without a patent? Zerify Inc (ZRFY) Stock Research Links ZRFY Board Company Profile Buy Rating Time & Sales News Filings Financials Newer Older