$PMCB PharmaCyte Biotech Strengthens Protection of Cancer Therapy with Patent Filing PMCB https://globenewswire.com/news-release/2017/03/22/943094/0/en/PharmaCyte-Biotech-Strengthens-Protection-of-Cancer-Therapy-with-Patent-Filing.html http://stockcharts.com/c-sc/sc?s=pmcb&p=w&b=5&g=0&i=p83703336007&r=1438886807535