cups-4.jpg (IMAGE) Texas Tech University Health Sciences Center Caption TTUHSC’s Samuel Prien, Ph.D., and Lindsay Penrose, Ph.D., have received a patent that makes important improvements to the first patented specimen collection cup invented at TTUHSC by Prien and Dustie Johnson, Ph.D. 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.