Prien_Sam_TTUHSC.jpg (IMAGE) Texas Tech University Health Sciences Center Caption Samuel Prien, Ph.D., and fellow researcher Lindsay Penrose, Ph.D., from TTUHSC were awarded a patent that makes important improvements to the first patented collection cup invented by Prien and Dustie Johnson, Ph.D., at TTUHSC. Credit TTUHSC Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.