Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10052667 | Ultrasonically cleaning vessels and pipes | Jean Collin, Joshua Luszcz, Christopher R. Casarez, Marc A. Kreider, Robert D. Varrin, Jr. +1 more | 2018-08-21 |
| 7857911 | Scale conditioning agents and treatment method | Robert D. Varrin, Jr., Naonobu Sasada | 2010-12-28 |
| 6955706 | Liquid degassing system for power plant system layup | Robert D. Varrin, Jr. | 2005-10-18 |
| 6572709 | Ultrasonic cleaning method | Naonobu Sasada, Robert D. Varrin, Jr., Michael W. Rootham | 2003-06-03 |