KPBJ.COM | One card to rule them all: Amazon patent hints at payment card | Business Daily | Emily Parkhurst | KITSAP PENINSULA BUSINESS JOURNAL by | Feb 24, 2014 | News http://kpbj.com/business_daily/2014-02-24/one_card_to_rule_them_all_amazon_patent_hints_at_payment_card Usable News.