 SEATTLE--BUSINESS WIRE--Impinj, Inc. NASDAQ: PI, a leading provider and pioneer of RAIN RFID solutions, today announced that Umesh Padval has joined its board of directors. Umesh brings extensive experience operating high-growth technology companies, said Impinj Board Chair Peter van Oppen. These skills, along with board and venture capital experience, are a strong addition to our team. His love of technology, his entrepreneurial spirit, and his broad operational and strategic experien 